190097861688 has 64 divisors (see below), whose sum is σ = 603485280000. Its totient is φ = 54313674336.

The previous prime is 190097861687. The next prime is 190097861693. The reversal of 190097861688 is 886168790091.

190097861688 is a `hidden beast` number, since 1 + 9 + 0 + 0 + 9 + 7 + 8 + 616 + 8 + 8 = 666.

It is a super-2 number, since 2×190097861688² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190097861687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62861538 + ... + 62864561.

It is an arithmetic number, because the mean of its divisors is an integer number (9429457500).

Almost surely, 2^190097861688 is an apocalyptic number.

190097861688 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

190097861688 is an abundant number, since it is smaller than the sum of its proper divisors (413387418312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190097861688 is a wasteful number, since it uses less digits than its factorization.

190097861688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125726121 (or 125726111 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 63.

The spelling of 190097861688 in words is "one hundred ninety billion, ninety-seven million, eight hundred sixty-one thousand, six hundred eighty-eight".