40817044872 has 48 divisors (see below), whose sum is σ = 110728400640. Its totient is φ = 13583252448.

The previous prime is 40817044871. The next prime is 40817044883. The reversal of 40817044872 is 27844071804.

40817044872 is a `hidden beast` number, since 408 + 170 + 4 + 4 + 8 + 72 = 666.

It is a super-2 number, since 2×40817044872² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40817044871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 423268 + ... + 510675.

It is an arithmetic number, because the mean of its divisors is an integer number (2306841680).

Almost surely, 2^40817044872 is an apocalyptic number.

It is an amenable number.

40817044872 is an abundant number, since it is smaller than the sum of its proper divisors (69911355768).

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

40817044872 is a wasteful number, since it uses less digits than its factorization.

40817044872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934562 (or 934555 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 45.

The spelling of 40817044872 in words is "forty billion, eight hundred seventeen million, forty-four thousand, eight hundred seventy-two".