61131468597 has 24 divisors (see below), whose sum is σ = 90349893696. Its totient is φ = 36689292288.

The previous prime is 61131468577. The next prime is 61131468599. The reversal of 61131468597 is 79586413116.

It is a happy number.

It is not a de Polignac number, because 61131468597 - 2⁶ = 61131468533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61131468599) 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, 1512868 + ... + 1552749.

It is an arithmetic number, because the mean of its divisors is an integer number (3764578904).

Almost surely, 2^61131468597 is an apocalyptic number.

It is an amenable number.

61131468597 is a deficient number, since it is larger than the sum of its proper divisors (29218425099).

61131468597 is a wasteful number, since it uses less digits than its factorization.

61131468597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3065677 (or 3065660 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 51.

The spelling of 61131468597 in words is "sixty-one billion, one hundred thirty-one million, four hundred sixty-eight thousand, five hundred ninety-seven".