40397514885 has 128 divisors (see below), whose sum is σ = 93591106560. Its totient is φ = 16044023808.

The previous prime is 40397514853. The next prime is 40397514887. The reversal of 40397514885 is 58841579304.

40397514885 is a `hidden beast` number, since 40 + 3 + 9 + 7 + 514 + 8 + 85 = 666.

It is not a de Polignac number, because 40397514885 - 2⁵ = 40397514853 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40397514887) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 112129 + ... + 305561.

It is an arithmetic number, because the mean of its divisors is an integer number (731180520).

Almost surely, 2^40397514885 is an apocalyptic number.

40397514885 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40397514885 is an abundant number, since it is smaller than the sum of its proper divisors (53193591675).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40397514885 is a wasteful number, since it uses less digits than its factorization.

40397514885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193484 (or 193478 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 40397514885 in words is "forty billion, three hundred ninety-seven million, five hundred fourteen thousand, eight hundred eighty-five".