61922970624 has 88 divisors (see below), whose sum is σ = 165121959168. Its totient is φ = 20631654400.

The previous prime is 61922970617. The next prime is 61922970647. The reversal of 61922970624 is 42607922916.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 11569549 + ... + 11574899.

Almost surely, 2^61922970624 is an apocalyptic number.

61922970624 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61922970624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82560979584).

61922970624 is an abundant number, since it is smaller than the sum of its proper divisors (103198988544).

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

61922970624 is a wasteful number, since it uses less digits than its factorization.

61922970624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9141 (or 9123 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 48.

The spelling of 61922970624 in words is "sixty-one billion, nine hundred twenty-two million, nine hundred seventy thousand, six hundred twenty-four".