61188434592 has 48 divisors (see below), whose sum is σ = 160890649920. Its totient is φ = 20361731072.

The previous prime is 61188434581. The next prime is 61188434617. The reversal of 61188434592 is 29543488116.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480492 + ... + 594347.

It is an arithmetic number, because the mean of its divisors is an integer number (3351888540).

Almost surely, 2^61188434592 is an apocalyptic number.

It is an amenable number.

61188434592 is an abundant number, since it is smaller than the sum of its proper divisors (99702215328).

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

61188434592 is a wasteful number, since it uses less digits than its factorization.

61188434592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075445 (or 1075437 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 51.

The spelling of 61188434592 in words is "sixty-one billion, one hundred eighty-eight million, four hundred thirty-four thousand, five hundred ninety-two".