190704431986 has 16 divisors (see below), whose sum is σ = 286722756864. Its totient is φ = 95130249984.

The previous prime is 190704431963. The next prime is 190704432019. The reversal of 190704431986 is 689134407091.

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, 7030546 + ... + 7057618.

It is an arithmetic number, because the mean of its divisors is an integer number (17920172304).

Almost surely, 2^190704431986 is an apocalyptic number.

190704431986 is a deficient number, since it is larger than the sum of its proper divisors (96018324878).

190704431986 is a wasteful number, since it uses less digits than its factorization.

190704431986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35145.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 190704431986 in words is "one hundred ninety billion, seven hundred four million, four hundred thirty-one thousand, nine hundred eighty-six".