190789078356 has 18 divisors (see below), whose sum is σ = 482272392602. Its totient is φ = 63596359440.

The previous prime is 190789078339. The next prime is 190789078391. The reversal of 190789078356 is 653870987091.

190789078356 is a `hidden beast` number, since 190 + 7 + 8 + 90 + 7 + 8 + 356 = 666.

It can be written as a sum of positive squares in only one way, i.e., 189674186256 + 1114892100 = 435516^2 + 33390^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 190789078293 and 190789078302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2649848275 + ... + 2649848346.

Almost surely, 2^190789078356 is an apocalyptic number.

It is an amenable number.

190789078356 is an abundant number, since it is smaller than the sum of its proper divisors (291483314246).

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

190789078356 is a wasteful number, since it uses less digits than its factorization.

190789078356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5299696631 (or 5299696626 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 63.

The spelling of 190789078356 in words is "one hundred ninety billion, seven hundred eighty-nine million, seventy-eight thousand, three hundred fifty-six".