40024402789061 has 4 divisors (see below), whose sum is σ = 40024467011724. Its totient is φ = 40024338566400.

The previous prime is 40024402789057. The next prime is 40024402789247. The reversal of 40024402789061 is 16098720442004.

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 28824711388225 + 11199691400836 = 5368865^2 + 3346594^2 .

It is a cyclic number.

It is not a de Polignac number, because 40024402789061 - 2² = 40024402789057 is a prime.

It is a super-2 number, since 2×40024402789061² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40024402788997 and 40024402789015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40024402789661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31167260 + ... + 32426021.

It is an arithmetic number, because the mean of its divisors is an integer number (10006116752931).

Almost surely, 2^{40024402789061} is an apocalyptic number.

It is an amenable number.

40024402789061 is a deficient number, since it is larger than the sum of its proper divisors (64222663).

40024402789061 is an equidigital number, since it uses as much as digits as its factorization.

40024402789061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64222662.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 40024402789061 in words is "forty trillion, twenty-four billion, four hundred two million, seven hundred eighty-nine thousand, sixty-one".