40639450976 has 24 divisors (see below), whose sum is σ = 80015140800. Its totient is φ = 20318145408.

The previous prime is 40639450939. The next prime is 40639451003. The reversal of 40639450976 is 67905493604.

40639450976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 444590 + ... + 528146.

It is an arithmetic number, because the mean of its divisors is an integer number (3333964200).

Almost surely, 2^40639450976 is an apocalyptic number.

It is an amenable number.

40639450976 is a deficient number, since it is larger than the sum of its proper divisors (39375689824).

40639450976 is a wasteful number, since it uses less digits than its factorization.

40639450976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98766 (or 98758 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 53.

The spelling of 40639450976 in words is "forty billion, six hundred thirty-nine million, four hundred fifty thousand, nine hundred seventy-six".