64119508992 has 624 divisors, whose sum is σ = 236136700800. Its totient is φ = 16618291200.

The previous prime is 64119508963. The next prime is 64119509009. The reversal of 64119508992 is 29980591146.

64119508992 is a `hidden beast` number, since 6 + 41 + 1 + 9 + 508 + 9 + 92 = 666.

It is a super-2 number, since 2×64119508992² (a number of 22 digits) contains 22 as substring.

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 139087642 + ... + 139088102.

It is an arithmetic number, because the mean of its divisors is an integer number (378424200).

Almost surely, 2^64119508992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64119508992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118068350400).

64119508992 is an abundant number, since it is smaller than the sum of its proper divisors (172017191808).

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

64119508992 is a wasteful number, since it uses less digits than its factorization.

64119508992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The spelling of 64119508992 in words is "sixty-four billion, one hundred nineteen million, five hundred eight thousand, nine hundred ninety-two".