40828130587961 has 4 divisors (see below), whose sum is σ = 41823938651124. Its totient is φ = 39832322524800.

The previous prime is 40828130587919. The next prime is 40828130587963. The reversal of 40828130587961 is 16978503182804.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7124996994361 + 33703133593600 = 2669269^2 + 5805440^2 .

It is a cyclic number.

It is not a de Polignac number, because 40828130587961 - 2⁶ = 40828130587897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40828130587894 and 40828130587903.

It is not an unprimeable number, because it can be changed into a prime (40828130587963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497904031520 + ... + 497904031601.

It is an arithmetic number, because the mean of its divisors is an integer number (10455984662781).

It is a 1-persistent number, because it is pandigital, but 2⋅40828130587961 = 81656261175922 is not.

Almost surely, 2^{40828130587961} is an apocalyptic number.

40828130587961 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

40828130587961 is a deficient number, since it is larger than the sum of its proper divisors (995808063163).

40828130587961 is an equidigital number, since it uses as much as digits as its factorization.

40828130587961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995808063162.

The product of its (nonzero) digits is 23224320, while the sum is 62.

The spelling of 40828130587961 in words is "forty trillion, eight hundred twenty-eight billion, one hundred thirty million, five hundred eighty-seven thousand, nine hundred sixty-one".