190202014657 has 4 divisors (see below), whose sum is σ = 190878890436. Its totient is φ = 189525138880.

The previous prime is 190202014649. The next prime is 190202014661. The reversal of 190202014657 is 756410202091.

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 90851605056 + 99350409601 = 301416^2 + 315199^2 .

It is a cyclic number.

It is not a de Polignac number, because 190202014657 - 2³ = 190202014649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190202014637) 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, 338437468 + ... + 338438029.

It is an arithmetic number, because the mean of its divisors is an integer number (47719722609).

Almost surely, 2^190202014657 is an apocalyptic number.

It is an amenable number.

190202014657 is a deficient number, since it is larger than the sum of its proper divisors (676875779).

190202014657 is an equidigital number, since it uses as much as digits as its factorization.

190202014657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676875778.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 190202014657 in words is "one hundred ninety billion, two hundred two million, fourteen thousand, six hundred fifty-seven".