40957755397 has 32 divisors (see below), whose sum is σ = 46467993600. Its totient is φ = 35838609408.

The previous prime is 40957755389. The next prime is 40957755407. The reversal of 40957755397 is 79355775904.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 40957755397 - 2³ = 40957755389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40957755317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4639854 + ... + 4648672.

It is an arithmetic number, because the mean of its divisors is an integer number (1452124800).

Almost surely, 2^40957755397 is an apocalyptic number.

It is an amenable number.

40957755397 is a deficient number, since it is larger than the sum of its proper divisors (5510238203).

40957755397 is a wasteful number, since it uses less digits than its factorization.

40957755397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9085.

The product of its (nonzero) digits is 41674500, while the sum is 61.

The spelling of 40957755397 in words is "forty billion, nine hundred fifty-seven million, seven hundred fifty-five thousand, three hundred ninety-seven".