190918182819 has 32 divisors (see below), whose sum is σ = 321769262080. Its totient is φ = 97982358912.

The previous prime is 190918182787. The next prime is 190918182823. The reversal of 190918182819 is 918281819091.

It is not a de Polignac number, because 190918182819 - 2⁵ = 190918182787 is a prime.

It is a super-2 number, since 2×190918182819² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190918182419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9440359 + ... + 9460560.

It is an arithmetic number, because the mean of its divisors is an integer number (10055289440).

Almost surely, 2^190918182819 is an apocalyptic number.

190918182819 is a deficient number, since it is larger than the sum of its proper divisors (130851079261).

190918182819 is a wasteful number, since it uses less digits than its factorization.

190918182819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18900979.

The product of its (nonzero) digits is 746496, while the sum is 57.

The spelling of 190918182819 in words is "one hundred ninety billion, nine hundred eighteen million, one hundred eighty-two thousand, eight hundred nineteen".