64950987456 has 224 divisors, whose sum is σ = 201302112000. Its totient is φ = 20479371264.

The previous prime is 64950987421. The next prime is 64950987469. The reversal of 64950987456 is 65478905946.

64950987456 is a `hidden beast` number, since 6 + 4 + 9 + 509 + 8 + 74 + 56 = 666.

64950987456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 64950987393 and 64950987402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31090860 + ... + 31092948.

Almost surely, 2^64950987456 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 64950987456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100651056000).

64950987456 is an abundant number, since it is smaller than the sum of its proper divisors (136351124544).

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

64950987456 is a wasteful number, since it uses less digits than its factorization.

64950987456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3076 (or 3060 counting only the distinct ones).

The product of its (nonzero) digits is 65318400, while the sum is 63.

The spelling of 64950987456 in words is "sixty-four billion, nine hundred fifty million, nine hundred eighty-seven thousand, four hundred fifty-six".