190492124805 has 24 divisors (see below), whose sum is σ = 330200284128. Its totient is φ = 101591512416.

The previous prime is 190492124777. The next prime is 190492124821. The reversal of 190492124805 is 508421294091.

It is a happy number.

It is not a de Polignac number, because 190492124805 - 2⁸ = 190492124549 is a prime.

It is a super-2 number, since 2×190492124805² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1190274 + ... + 1340796.

It is an arithmetic number, because the mean of its divisors is an integer number (13758345172).

Almost surely, 2^190492124805 is an apocalyptic number.

190492124805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

190492124805 is a deficient number, since it is larger than the sum of its proper divisors (139708159323).

190492124805 is a wasteful number, since it uses less digits than its factorization.

190492124805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178657 (or 178654 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The spelling of 190492124805 in words is "one hundred ninety billion, four hundred ninety-two million, one hundred twenty-four thousand, eight hundred five".