40640262888 has 32 divisors (see below), whose sum is σ = 102331605600. Its totient is φ = 13449294528.

The previous prime is 40640262881. The next prime is 40640262893. The reversal of 40640262888 is 88826204604.

40640262888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40640262881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6087831 + ... + 6094502.

It is an arithmetic number, because the mean of its divisors is an integer number (3197862675).

Almost surely, 2^40640262888 is an apocalyptic number.

It is an amenable number.

40640262888 is an abundant number, since it is smaller than the sum of its proper divisors (61691342712).

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

40640262888 is a wasteful number, since it uses less digits than its factorization.

40640262888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12182481 (or 12182477 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 48.

The spelling of 40640262888 in words is "forty billion, six hundred forty million, two hundred sixty-two thousand, eight hundred eighty-eight".