64187487260 has 48 divisors (see below), whose sum is σ = 146911466016. Its totient is φ = 23414445312.

The previous prime is 64187487253. The next prime is 64187487263. The reversal of 64187487260 is 6278478146.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64187487263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1465619 + ... + 1508778.

It is an arithmetic number, because the mean of its divisors is an integer number (3060655542).

Almost surely, 2^64187487260 is an apocalyptic number.

It is an amenable number.

64187487260 is an abundant number, since it is smaller than the sum of its proper divisors (82723978756).

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

64187487260 is a wasteful number, since it uses less digits than its factorization.

64187487260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974502 (or 2974500 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 53.

The spelling of 64187487260 in words is "sixty-four billion, one hundred eighty-seven million, four hundred eighty-seven thousand, two hundred sixty".