40157945207 has 16 divisors (see below), whose sum is σ = 42869103552. Its totient is φ = 37486348800.

The previous prime is 40157945203. The next prime is 40157945213. The reversal of 40157945207 is 70254975104.

It is a cyclic number.

It is not a de Polignac number, because 40157945207 - 2² = 40157945203 is a prime.

It is a super-2 number, since 2×40157945207² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40157945203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1664273 + ... + 1688229.

It is an arithmetic number, because the mean of its divisors is an integer number (2679318972).

Almost surely, 2^40157945207 is an apocalyptic number.

40157945207 is a deficient number, since it is larger than the sum of its proper divisors (2711158345).

40157945207 is a wasteful number, since it uses less digits than its factorization.

40157945207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24778.

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 40157945207 in words is "forty billion, one hundred fifty-seven million, nine hundred forty-five thousand, two hundred seven".