190704431985 has 16 divisors (see below), whose sum is σ = 305172732480. Its totient is φ = 101693816640.

The previous prime is 190704431963. The next prime is 190704432019. The reversal of 190704431985 is 589134407091.

It is not a de Polignac number, because 190704431985 - 2⁶ = 190704431921 is a prime.

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, 846871 + ... + 1048140.

It is an arithmetic number, because the mean of its divisors is an integer number (19073295780).

Almost surely, 2^190704431985 is an apocalyptic number.

190704431985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

190704431985 is a deficient number, since it is larger than the sum of its proper divisors (114468300495).

190704431985 is a wasteful number, since it uses less digits than its factorization.

190704431985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1901728.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 190704431985 in words is "one hundred ninety billion, seven hundred four million, four hundred thirty-one thousand, nine hundred eighty-five".