2493081898057 has 2 divisors, whose sum is σ = 2493081898058. Its totient is φ = 2493081898056.

The previous prime is 2493081897959. The next prime is 2493081898081. The reversal of 2493081898057 is 7508981803942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1545971443641 + 947110454416 = 1243371^2 + 973196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2493081898057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2493081898057.

It is not a weakly prime, because it can be changed into another prime (2493081892057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1246540949028 + 1246540949029.

It is an arithmetic number, because the mean of its divisors is an integer number (1246540949029).

Almost surely, 2^{2493081898057} is an apocalyptic number.

It is an amenable number.

2493081898057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2493081898057 is an equidigital number, since it uses as much as digits as its factorization.

2493081898057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34836480, while the sum is 64.

The spelling of 2493081898057 in words is "two trillion, four hundred ninety-three billion, eighty-one million, eight hundred ninety-eight thousand, fifty-seven".