64427381176 has 16 divisors (see below), whose sum is σ = 120835335600. Its totient is φ = 32204625024.

The previous prime is 64427381087. The next prime is 64427381191. The reversal of 64427381176 is 67118372446.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1102945 + ... + 1159888.

It is an arithmetic number, because the mean of its divisors is an integer number (7552208475).

Almost surely, 2^64427381176 is an apocalyptic number.

It is an amenable number.

64427381176 is a deficient number, since it is larger than the sum of its proper divisors (56407954424).

64427381176 is a wasteful number, since it uses less digits than its factorization.

64427381176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2266398 (or 2266394 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 49.

The spelling of 64427381176 in words is "sixty-four billion, four hundred twenty-seven million, three hundred eighty-one thousand, one hundred seventy-six".