64537486760 has 16 divisors (see below), whose sum is σ = 145209345300. Its totient is φ = 25814994688.

The previous prime is 64537486759. The next prime is 64537486771. The reversal of 64537486760 is 6768473546.

It can be written as a sum of positive squares in 2 ways, for example, as 64537337764 + 148996 = 254042^2 + 386^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64537486696 and 64537486705.

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, 806718545 + ... + 806718624.

Almost surely, 2^64537486760 is an apocalyptic number.

It is an amenable number.

64537486760 is an abundant number, since it is smaller than the sum of its proper divisors (80671858540).

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

64537486760 is a wasteful number, since it uses less digits than its factorization.

64537486760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613437180 (or 1613437176 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 56.

The spelling of 64537486760 in words is "sixty-four billion, five hundred thirty-seven million, four hundred eighty-six thousand, seven hundred sixty".