190479427686 has 32 divisors (see below), whose sum is σ = 423429120000. Its totient is φ = 63471917160.

The previous prime is 190479427679. The next prime is 190479427759. The reversal of 190479427686 is 686724974091.

190479427686 is a `hidden beast` number, since 1 + 90 + 47 + 9 + 427 + 6 + 86 = 666.

190479427686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×190479427686² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426150 + ... + 750041.

It is an arithmetic number, because the mean of its divisors is an integer number (13232160000).

Almost surely, 2^190479427686 is an apocalyptic number.

190479427686 is an abundant number, since it is smaller than the sum of its proper divisors (232949692314).

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

190479427686 is a wasteful number, since it uses less digits than its factorization.

190479427686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179201 (or 1179195 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 190479427686 in words is "one hundred ninety billion, four hundred seventy-nine million, four hundred twenty-seven thousand, six hundred eighty-six".