49378456464 has 40 divisors (see below), whose sum is σ = 127625715360. Its totient is φ = 16451136768.

The previous prime is 49378456447. The next prime is 49378456493. The reversal of 49378456464 is 46465487394.

It is a junction number, because it is equal to n+sod(n) for n = 49378456398 and 49378456407.

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, 164917 + ... + 354900.

It is an arithmetic number, because the mean of its divisors is an integer number (3190642884).

Almost surely, 2^49378456464 is an apocalyptic number.

It is an amenable number.

49378456464 is an abundant number, since it is smaller than the sum of its proper divisors (78247258896).

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

49378456464 is a wasteful number, since it uses less digits than its factorization.

49378456464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521807 (or 521801 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 60.

The spelling of 49378456464 in words is "forty-nine billion, three hundred seventy-eight million, four hundred fifty-six thousand, four hundred sixty-four".