15046594991993 has 2 divisors, whose sum is σ = 15046594991994. Its totient is φ = 15046594991992.

The previous prime is 15046594991983. The next prime is 15046594992007. The reversal of 15046594991993 is 39919949564051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14339308945984 + 707286046009 = 3786728^2 + 841003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15046594991993 is a prime.

It is a super-2 number, since 2×15046594991993² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 15046594991993.

It is not a weakly prime, because it can be changed into another prime (15046594991963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7523297495996 + 7523297495997.

It is an arithmetic number, because the mean of its divisors is an integer number (7523297495997).

Almost surely, 2^{15046594991993} is an apocalyptic number.

It is an amenable number.

15046594991993 is a deficient number, since it is larger than the sum of its proper divisors (1).

15046594991993 is an equidigital number, since it uses as much as digits as its factorization.

15046594991993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 425152800, while the sum is 74.

The spelling of 15046594991993 in words is "fifteen trillion, forty-six billion, five hundred ninety-four million, nine hundred ninety-one thousand, nine hundred ninety-three".