18957073085895 has 32 divisors (see below), whose sum is σ = 34675124820480. Its totient is φ = 8663399902080.

The previous prime is 18957073085879. The next prime is 18957073085959. The reversal of 18957073085895 is 59858037075981.

It is not a de Polignac number, because 18957073085895 - 2⁴ = 18957073085879 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27687805 + ... + 28364214.

It is an arithmetic number, because the mean of its divisors is an integer number (1083597650640).

Almost surely, 2^{18957073085895} is an apocalyptic number.

18957073085895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18957073085895 is a deficient number, since it is larger than the sum of its proper divisors (15718051734585).

18957073085895 is a wasteful number, since it uses less digits than its factorization.

18957073085895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56055255.

The product of its (nonzero) digits is 762048000, while the sum is 75.

The spelling of 18957073085895 in words is "eighteen trillion, nine hundred fifty-seven billion, seventy-three million, eighty-five thousand, eight hundred ninety-five".