2615888993 has 2 divisors, whose sum is σ = 2615888994. Its totient is φ = 2615888992.

The previous prime is 2615888983. The next prime is 2615889007. The reversal of 2615888993 is 3998885162.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2352541009 + 263347984 = 48503^2 + 16228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2615888993 is a prime.

It is not a weakly prime, because it can be changed into another prime (2615888953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1307944496 + 1307944497.

It is an arithmetic number, because the mean of its divisors is an integer number (1307944497).

Almost surely, 2^2615888993 is an apocalyptic number.

It is an amenable number.

2615888993 is a deficient number, since it is larger than the sum of its proper divisors (1).

2615888993 is an equidigital number, since it uses as much as digits as its factorization.

2615888993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7464960, while the sum is 59.

The square root of 2615888993 is about 51145.7622193667. The cubic root of 2615888993 is about 1377.8642649819.

The spelling of 2615888993 in words is "two billion, six hundred fifteen million, eight hundred eighty-eight thousand, nine hundred ninety-three".