40499256864 has 96 divisors (see below), whose sum is σ = 117171061056. Its totient is φ = 12145950720.

The previous prime is 40499256829. The next prime is 40499256881. The reversal of 40499256864 is 46865299404.

40499256864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×40499256864³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (57) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95257 + ... + 300120.

It is an arithmetic number, because the mean of its divisors is an integer number (1220531886).

Almost surely, 2^40499256864 is an apocalyptic number.

40499256864 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40499256864 is an abundant number, since it is smaller than the sum of its proper divisors (76671804192).

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

40499256864 is a wasteful number, since it uses less digits than its factorization.

40499256864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395498 (or 395490 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 57.

The spelling of 40499256864 in words is "forty billion, four hundred ninety-nine million, two hundred fifty-six thousand, eight hundred sixty-four".