190957333391 has 16 divisors (see below), whose sum is σ = 211392115200. Its totient is φ = 171050830080.

The previous prime is 190957333387. The next prime is 190957333403. The reversal of 190957333391 is 193333759091.

It is a cyclic number.

It is not a de Polignac number, because 190957333391 - 2² = 190957333387 is a prime.

It is a super-5 number, since 5×190957333391⁵ (a number of 58 digits) contains 55555 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 (190957333361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151991 + ... + 636408.

It is an arithmetic number, because the mean of its divisors is an integer number (13212007200).

Almost surely, 2^190957333391 is an apocalyptic number.

190957333391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

190957333391 is a deficient number, since it is larger than the sum of its proper divisors (20434781809).

190957333391 is a wasteful number, since it uses less digits than its factorization.

190957333391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788734.

The product of its (nonzero) digits is 2066715, while the sum is 53.

The spelling of 190957333391 in words is "one hundred ninety billion, nine hundred fifty-seven million, three hundred thirty-three thousand, three hundred ninety-one".