64712810040 has 32 divisors (see below), whose sum is σ = 194138430480. Its totient is φ = 17256749312.

The previous prime is 64712810039. The next prime is 64712810089. The reversal of 64712810040 is 4001821746.

64712810040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64712809983 and 64712810010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269636589 + ... + 269636828.

Almost surely, 2^64712810040 is an apocalyptic number.

64712810040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64712810040 is an abundant number, since it is smaller than the sum of its proper divisors (129425620440).

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

64712810040 is a wasteful number, since it uses less digits than its factorization.

64712810040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539273431 (or 539273427 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The spelling of 64712810040 in words is "sixty-four billion, seven hundred twelve million, eight hundred ten thousand, forty".