2015730658831 has 2 divisors, whose sum is σ = 2015730658832. Its totient is φ = 2015730658830.

The previous prime is 2015730658793. The next prime is 2015730658861. The reversal of 2015730658831 is 1388560375102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2015730658831 - 2²³ = 2015722270223 is a prime.

It is a super-2 number, since 2×2015730658831² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2015730658861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007865329415 + 1007865329416.

It is an arithmetic number, because the mean of its divisors is an integer number (1007865329416).

Almost surely, 2^{2015730658831} is an apocalyptic number.

2015730658831 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015730658831 is an equidigital number, since it uses as much as digits as its factorization.

2015730658831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1209600, while the sum is 49.

The spelling of 2015730658831 in words is "two trillion, fifteen billion, seven hundred thirty million, six hundred fifty-eight thousand, eight hundred thirty-one".