64749906234 has 48 divisors (see below), whose sum is σ = 151101640872. Its totient is φ = 19920605184.

The previous prime is 64749906229. The next prime is 64749906259. The reversal of 64749906234 is 43260994746.

64749906234 is a `hidden beast` number, since 6 + 4 + 7 + 4 + 9 + 9 + 0 + 623 + 4 = 666.

64749906234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 50240981025 + 14508925209 = 224145^2 + 120453^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3179974 + ... + 3200270.

Almost surely, 2^64749906234 is an apocalyptic number.

64749906234 is an abundant number, since it is smaller than the sum of its proper divisors (86351734638).

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

64749906234 is a wasteful number, since it uses less digits than its factorization.

64749906234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33951 (or 33948 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 54.

The spelling of 64749906234 in words is "sixty-four billion, seven hundred forty-nine million, nine hundred six thousand, two hundred thirty-four".