61207688519 has 2 divisors, whose sum is σ = 61207688520. Its totient is φ = 61207688518.

The previous prime is 61207688497. The next prime is 61207688569. The reversal of 61207688519 is 91588670216.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61207688519 - 2²⁴ = 61190911303 is a prime.

It is a super-2 number, since 2×61207688519² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61207688569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30603844259 + 30603844260.

It is an arithmetic number, because the mean of its divisors is an integer number (30603844260).

Almost surely, 2^61207688519 is an apocalyptic number.

61207688519 is a deficient number, since it is larger than the sum of its proper divisors (1).

61207688519 is an equidigital number, since it uses as much as digits as its factorization.

61207688519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 53.

The spelling of 61207688519 in words is "sixty-one billion, two hundred seven million, six hundred eighty-eight thousand, five hundred nineteen".