40787128825 has 12 divisors (see below), whose sum is σ = 50611625728. Its totient is φ = 32606744400.

The previous prime is 40787128819. The next prime is 40787128901. The reversal of 40787128825 is 52882178704.

It is not a de Polignac number, because 40787128825 - 2²³ = 40778740217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 537681 + ... + 608830.

Almost surely, 2^40787128825 is an apocalyptic number.

It is an amenable number.

40787128825 is a deficient number, since it is larger than the sum of its proper divisors (9824496903).

40787128825 is a wasteful number, since it uses less digits than its factorization.

40787128825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147944 (or 1147939 counting only the distinct ones).

The product of its (nonzero) digits is 2007040, while the sum is 52.

The spelling of 40787128825 in words is "forty billion, seven hundred eighty-seven million, one hundred twenty-eight thousand, eight hundred twenty-five".