61534600515079 has 2 divisors, whose sum is σ = 61534600515080. Its totient is φ = 61534600515078.

The previous prime is 61534600515001. The next prime is 61534600515139. The reversal of 61534600515079 is 97051500643516.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61534600515079 - 2²⁷ = 61534466297351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61534600515379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30767300257539 + 30767300257540.

It is an arithmetic number, because the mean of its divisors is an integer number (30767300257540).

Almost surely, 2^{61534600515079} is an apocalyptic number.

61534600515079 is a deficient number, since it is larger than the sum of its proper divisors (1).

61534600515079 is an equidigital number, since it uses as much as digits as its factorization.

61534600515079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402000, while the sum is 52.

The spelling of 61534600515079 in words is "sixty-one trillion, five hundred thirty-four billion, six hundred million, five hundred fifteen thousand, seventy-nine".