63579640662 has 64 divisors (see below), whose sum is σ = 143152128000. Its totient is φ = 20913894144.

The previous prime is 63579640589. The next prime is 63579640697. The reversal of 63579640662 is 26604697536.

63579640662 is a `hidden beast` number, since 6 + 3 + 579 + 6 + 4 + 0 + 6 + 62 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

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

It is a junction number, because it is equal to n+sod(n) for n = 63579640599 and 63579640608.

It is a congruent number.

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, 13516603 + ... + 13521305.

It is an arithmetic number, because the mean of its divisors is an integer number (2236752000).

Almost surely, 2^63579640662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63579640662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71576064000).

63579640662 is an abundant number, since it is smaller than the sum of its proper divisors (79572487338).

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

63579640662 is a wasteful number, since it uses less digits than its factorization.

63579640662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7962 (or 7956 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 54.

The spelling of 63579640662 in words is "sixty-three billion, five hundred seventy-nine million, six hundred forty thousand, six hundred sixty-two".