18597978710870 has 32 divisors (see below), whose sum is σ = 36051832016928. Its totient is φ = 6866876348928.

The previous prime is 18597978710867. The next prime is 18597978710881. The reversal of 18597978710870 is 7801787979581.

It is a junction number, because it is equal to n+sod(n) for n = 18597978710791 and 18597978710800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13162037 + ... + 14506383.

It is an arithmetic number, because the mean of its divisors is an integer number (1126619750529).

Almost surely, 2^{18597978710870} is an apocalyptic number.

18597978710870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18597978710870 is a deficient number, since it is larger than the sum of its proper divisors (17453853306058).

18597978710870 is a wasteful number, since it uses less digits than its factorization.

18597978710870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450784.

The product of its (nonzero) digits is 497871360, while the sum is 77.

The spelling of 18597978710870 in words is "eighteen trillion, five hundred ninety-seven billion, nine hundred seventy-eight million, seven hundred ten thousand, eight hundred seventy".