61933913088 has 88 divisors (see below), whose sum is σ = 165382730592. Its totient is φ = 20606337024.

The previous prime is 61933913087. The next prime is 61933913117. The reversal of 61933913088 is 88031933916.

It is a self number, because there is not a number n which added to its sum of digits gives 61933913088.

It is not an unprimeable number, because it can be changed into a prime (61933913087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1661956 + ... + 1698812.

Almost surely, 2^61933913088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61933913088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82691365296).

61933913088 is an abundant number, since it is smaller than the sum of its proper divisors (103448817504).

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

61933913088 is a wasteful number, since it uses less digits than its factorization.

61933913088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37427 (or 37409 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 51.

The spelling of 61933913088 in words is "sixty-one billion, nine hundred thirty-three million, nine hundred thirteen thousand, eighty-eight".