61189932861813 has 24 divisors (see below), whose sum is σ = 96206928284928. Its totient is φ = 34486694053056.

The previous prime is 61189932861763. The next prime is 61189932861821. The reversal of 61189932861813 is 31816823998116.

It is not a de Polignac number, because 61189932861813 - 2⁸ = 61189932861557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61189932061813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2851071781 + ... + 2851093242.

It is an arithmetic number, because the mean of its divisors is an integer number (4008622011872).

Almost surely, 2^{61189932861813} is an apocalyptic number.

It is an amenable number.

61189932861813 is a deficient number, since it is larger than the sum of its proper divisors (35016995423115).

61189932861813 is a wasteful number, since it uses less digits than its factorization.

61189932861813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5702165113 (or 5702165106 counting only the distinct ones).

The product of its digits is 26873856, while the sum is 66.

The spelling of 61189932861813 in words is "sixty-one trillion, one hundred eighty-nine billion, nine hundred thirty-two million, eight hundred sixty-one thousand, eight hundred thirteen".