40870551145 has 4 divisors (see below), whose sum is σ = 49044661380. Its totient is φ = 32696440912.

The previous prime is 40870551133. The next prime is 40870551181. The reversal of 40870551145 is 54115507804.

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 32559676249 + 8310874896 = 180443^2 + 91164^2 .

It is a cyclic number.

It is not a de Polignac number, because 40870551145 - 2²¹ = 40868453993 is a prime.

It is a super-2 number, since 2×40870551145² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 40870551098 and 40870551107.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4087055110 + ... + 4087055119.

It is an arithmetic number, because the mean of its divisors is an integer number (12261165345).

Almost surely, 2^40870551145 is an apocalyptic number.

It is an amenable number.

40870551145 is a deficient number, since it is larger than the sum of its proper divisors (8174110235).

40870551145 is an equidigital number, since it uses as much as digits as its factorization.

40870551145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8174110234.

The product of its (nonzero) digits is 112000, while the sum is 40.

The spelling of 40870551145 in words is "forty billion, eight hundred seventy million, five hundred fifty-one thousand, one hundred forty-five".