64751764242 has 32 divisors (see below), whose sum is σ = 141305425920. Its totient is φ = 19617739920.

The previous prime is 64751764201. The next prime is 64751764261. The reversal of 64751764242 is 24246715746.

It is a junction number, because it is equal to n+sod(n) for n = 64751764191 and 64751764200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233859 + ... + 429177.

It is an arithmetic number, because the mean of its divisors is an integer number (4415794560).

Almost surely, 2^64751764242 is an apocalyptic number.

64751764242 is an abundant number, since it is smaller than the sum of its proper divisors (76553661678).

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

64751764242 is a wasteful number, since it uses less digits than its factorization.

64751764242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200358.

The product of its digits is 2257920, while the sum is 48.

The spelling of 64751764242 in words is "sixty-four billion, seven hundred fifty-one million, seven hundred sixty-four thousand, two hundred forty-two".