61925418768 has 20 divisors (see below), whose sum is σ = 159973998608. Its totient is φ = 20641806240.

The previous prime is 61925418749. The next prime is 61925418769. The reversal of 61925418768 is 86781452916.

It is not an unprimeable number, because it can be changed into a prime (61925418769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 645056398 + ... + 645056493.

Almost surely, 2^61925418768 is an apocalyptic number.

It is an amenable number.

61925418768 is an abundant number, since it is smaller than the sum of its proper divisors (98048579840).

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

61925418768 is a wasteful number, since it uses less digits than its factorization.

61925418768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290112902 (or 1290112896 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 57.

The spelling of 61925418768 in words is "sixty-one billion, nine hundred twenty-five million, four hundred eighteen thousand, seven hundred sixty-eight".