18570196257 has 16 divisors (see below), whose sum is σ = 25000800000. Its totient is φ = 12259983744.

The previous prime is 18570196219. The next prime is 18570196357. The reversal of 18570196257 is 75269107581.

It is not a de Polignac number, because 18570196257 - 2¹⁵ = 18570163489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18570196157) 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 in 15 ways as a sum of consecutive naturals, for example, 639469 + ... + 667877.

It is an arithmetic number, because the mean of its divisors is an integer number (1562550000).

Almost surely, 2^18570196257 is an apocalyptic number.

It is an amenable number.

18570196257 is a deficient number, since it is larger than the sum of its proper divisors (6430603743).

18570196257 is a wasteful number, since it uses less digits than its factorization.

18570196257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30520.

The product of its (nonzero) digits is 1058400, while the sum is 51.

The spelling of 18570196257 in words is "eighteen billion, five hundred seventy million, one hundred ninety-six thousand, two hundred fifty-seven".