64987053732 has 96 divisors (see below), whose sum is σ = 174070400000. Its totient is φ = 20945433600.

The previous prime is 64987053667. The next prime is 64987053743. The reversal of 64987053732 is 23735078946.

64987053732 is a `hidden beast` number, since 6 + 4 + 9 + 8 + 70 + 537 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4173882 + ... + 4189422.

Almost surely, 2^64987053732 is an apocalyptic number.

64987053732 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64987053732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87035200000).

64987053732 is an abundant number, since it is smaller than the sum of its proper divisors (109083346268).

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

64987053732 is a wasteful number, since it uses less digits than its factorization.

64987053732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16834 (or 16826 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 54.

The spelling of 64987053732 in words is "sixty-four billion, nine hundred eighty-seven million, fifty-three thousand, seven hundred thirty-two".