64982746530 has 512 divisors, whose sum is σ = 199643996160. Its totient is φ = 15116544000.

The previous prime is 64982746511. The next prime is 64982746559. The reversal of 64982746530 is 3564728946.

64982746530 is a `hidden beast` number, since 6 + 49 + 8 + 27 + 46 + 530 = 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 polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 643393480 + ... + 643393580.

It is an arithmetic number, because the mean of its divisors is an integer number (389929680).

Almost surely, 2^64982746530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64982746530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99821998080).

64982746530 is an abundant number, since it is smaller than the sum of its proper divisors (134661249630).

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

64982746530 is a wasteful number, since it uses less digits than its factorization.

64982746530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 64982746530 in words is "sixty-four billion, nine hundred eighty-two million, seven hundred forty-six thousand, five hundred thirty".