61232751579 has 4 divisors (see below), whose sum is σ = 81643668776. Its totient is φ = 40821834384.

The previous prime is 61232751553. The next prime is 61232751589. The reversal of 61232751579 is 97515723216.

61232751579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 61232751579 - 2⁸ = 61232751323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61232751529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10205458594 + ... + 10205458599.

It is an arithmetic number, because the mean of its divisors is an integer number (20410917194).

Almost surely, 2^61232751579 is an apocalyptic number.

61232751579 is a deficient number, since it is larger than the sum of its proper divisors (20410917197).

61232751579 is a wasteful number, since it uses less digits than its factorization.

61232751579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20410917196.

The product of its digits is 793800, while the sum is 48.

The spelling of 61232751579 in words is "sixty-one billion, two hundred thirty-two million, seven hundred fifty-one thousand, five hundred seventy-nine".