978106437850194 has 16 divisors (see below), whose sum is σ = 2173569861889440. Its totient is φ = 326035479283380.

The previous prime is 978106437850183. The next prime is 978106437850279. The reversal of 978106437850194 is 491058734601879.

978106437850194 is a `hidden beast` number, since 9 + 7 + 8 + 1 + 0 + 6 + 43 + 78 + 501 + 9 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9056541091152 + ... + 9056541091259.

It is an arithmetic number, because the mean of its divisors is an integer number (135848116368090).

Almost surely, 2^{978106437850194} is an apocalyptic number.

978106437850194 is an abundant number, since it is smaller than the sum of its proper divisors (1195463424039246).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

978106437850194 is a wasteful number, since it uses less digits than its factorization.

978106437850194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18113082182422 (or 18113082182416 counting only the distinct ones).

The product of its (nonzero) digits is 365783040, while the sum is 72.

The spelling of 978106437850194 in words is "nine hundred seventy-eight trillion, one hundred six billion, four hundred thirty-seven million, eight hundred fifty thousand, one hundred ninety-four".