190930504623 has 4 divisors (see below), whose sum is σ = 254574006168. Its totient is φ = 127287003080.

The previous prime is 190930504619. The next prime is 190930504643. The reversal of 190930504623 is 326405039091.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 190930504623 - 2² = 190930504619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190930504643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31821750768 + ... + 31821750773.

It is an arithmetic number, because the mean of its divisors is an integer number (63643501542).

Almost surely, 2^190930504623 is an apocalyptic number.

190930504623 is a deficient number, since it is larger than the sum of its proper divisors (63643501545).

190930504623 is an equidigital number, since it uses as much as digits as its factorization.

190930504623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63643501544.

The product of its (nonzero) digits is 174960, while the sum is 42.

The spelling of 190930504623 in words is "one hundred ninety billion, nine hundred thirty million, five hundred four thousand, six hundred twenty-three".