64375261741644 has 24 divisors (see below), whose sum is σ = 171667364644608. Its totient is φ = 18392931926160.

The previous prime is 64375261741619. The next prime is 64375261741657. The reversal of 64375261741644 is 44614716257346.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383186081712 + ... + 383186081879.

It is an arithmetic number, because the mean of its divisors is an integer number (7152806860192).

Almost surely, 2^{64375261741644} is an apocalyptic number.

It is an amenable number.

64375261741644 is an abundant number, since it is smaller than the sum of its proper divisors (107292102902964).

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

64375261741644 is a wasteful number, since it uses less digits than its factorization.

64375261741644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766372163605 (or 766372163603 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 60.

The spelling of 64375261741644 in words is "sixty-four trillion, three hundred seventy-five billion, two hundred sixty-one million, seven hundred forty-one thousand, six hundred forty-four".