64950462738 has 32 divisors (see below), whose sum is σ = 164953557120. Its totient is φ = 18557274960.

The previous prime is 64950462719. The next prime is 64950462739. The reversal of 64950462738 is 83726405946.

64950462738 is a `hidden beast` number, since 6 + 4 + 9 + 5 + 0 + 4 + 627 + 3 + 8 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (64950462739) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 85912933 + ... + 85913688.

It is an arithmetic number, because the mean of its divisors is an integer number (5154798660).

Almost surely, 2^64950462738 is an apocalyptic number.

64950462738 is an abundant number, since it is smaller than the sum of its proper divisors (100003094382).

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

64950462738 is a wasteful number, since it uses less digits than its factorization.

64950462738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171826639 (or 171826633 counting only the distinct ones).

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

The spelling of 64950462738 in words is "sixty-four billion, nine hundred fifty million, four hundred sixty-two thousand, seven hundred thirty-eight".