190149326860 has 48 divisors (see below), whose sum is σ = 423158268960. Its totient is φ = 71645826560.

The previous prime is 190149326839. The next prime is 190149326893. The reversal of 190149326860 is 68623941091.

It is a happy number.

It is a super-2 number, since 2×190149326860² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3974314 + ... + 4021873.

It is an arithmetic number, because the mean of its divisors is an integer number (8815797270).

Almost surely, 2^190149326860 is an apocalyptic number.

190149326860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190149326860 is an abundant number, since it is smaller than the sum of its proper divisors (233008942100).

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

190149326860 is a wasteful number, since it uses less digits than its factorization.

190149326860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7996266 (or 7996264 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 49.

The spelling of 190149326860 in words is "one hundred ninety billion, one hundred forty-nine million, three hundred twenty-six thousand, eight hundred sixty".