64452240044 has 48 divisors (see below), whose sum is σ = 119079149280. Its totient is φ = 30480468480.

The previous prime is 64452240037. The next prime is 64452240109. The reversal of 64452240044 is 44004225446.

It is a junction number, because it is equal to n+sod(n) for n = 64452239986 and 64452240013.

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, 1383824 + ... + 1429640.

It is an arithmetic number, because the mean of its divisors is an integer number (2480815610).

Almost surely, 2^64452240044 is an apocalyptic number.

It is an amenable number.

64452240044 is a deficient number, since it is larger than the sum of its proper divisors (54626909236).

64452240044 is a wasteful number, since it uses less digits than its factorization.

64452240044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46098 (or 46096 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 35.

The spelling of 64452240044 in words is "sixty-four billion, four hundred fifty-two million, two hundred forty thousand, forty-four".