190014815957 has 4 divisors (see below), whose sum is σ = 196567051020. Its totient is φ = 183462580896.

The previous prime is 190014815917. The next prime is 190014815993. The reversal of 190014815957 is 759518410091.

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

It can be written as a sum of positive squares in 2 ways, for example, as 65293536676 + 124721279281 = 255526^2 + 353159^2 .

It is a cyclic number.

It is not a de Polignac number, because 190014815957 - 2¹⁶ = 190014750421 is a prime.

It is a super-2 number, since 2×190014815957² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190014815917) 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, 3276117488 + ... + 3276117545.

It is an arithmetic number, because the mean of its divisors is an integer number (49141762755).

Almost surely, 2^190014815957 is an apocalyptic number.

It is an amenable number.

190014815957 is a deficient number, since it is larger than the sum of its proper divisors (6552235063).

190014815957 is an equidigital number, since it uses as much as digits as its factorization.

190014815957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6552235062.

The product of its (nonzero) digits is 453600, while the sum is 50.

The spelling of 190014815957 in words is "one hundred ninety billion, fourteen million, eight hundred fifteen thousand, nine hundred fifty-seven".