40197539984 has 20 divisors (see below), whose sum is σ = 89008838784. Its totient is φ = 17227517088.

The previous prime is 40197539953. The next prime is 40197540041. The reversal of 40197539984 is 48993579104.

40197539984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (59) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179453192 + ... + 179453415.

Almost surely, 2^40197539984 is an apocalyptic number.

It is an amenable number.

40197539984 is an abundant number, since it is smaller than the sum of its proper divisors (48811298800).

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

40197539984 is a wasteful number, since it uses less digits than its factorization.

40197539984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358906622 (or 358906616 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 59.

The spelling of 40197539984 in words is "forty billion, one hundred ninety-seven million, five hundred thirty-nine thousand, nine hundred eighty-four".