61243124679 has 20 divisors (see below), whose sum is σ = 99803612040. Its totient is φ = 37117044720.

The previous prime is 61243124653. The next prime is 61243124681. The reversal of 61243124679 is 97642134216.

61243124679 is a `hidden beast` number, since 612 + 4 + 3 + 1 + 24 + 6 + 7 + 9 = 666.

It is not a de Polignac number, because 61243124679 - 2⁵ = 61243124647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61243124689) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 34366744 + ... + 34368525.

It is an arithmetic number, because the mean of its divisors is an integer number (4990180602).

Almost surely, 2^61243124679 is an apocalyptic number.

61243124679 is a deficient number, since it is larger than the sum of its proper divisors (38560487361).

61243124679 is a wasteful number, since it uses less digits than its factorization.

61243124679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68735292 (or 68735283 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The spelling of 61243124679 in words is "sixty-one billion, two hundred forty-three million, one hundred twenty-four thousand, six hundred seventy-nine".