126723053190 has 32 divisors (see below), whose sum is σ = 304161661440. Its totient is φ = 33789888224.

The previous prime is 126723053179. The next prime is 126723053203. The reversal of 126723053190 is 91350327621.

It is a happy number.

It is a super-2 number, since 2×126723053190² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 181267 + ... + 535073.

It is an arithmetic number, because the mean of its divisors is an integer number (9505051920).

Almost surely, 2^126723053190 is an apocalyptic number.

126723053190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126723053190 is an abundant number, since it is smaller than the sum of its proper divisors (177438608250).

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

126723053190 is a wasteful number, since it uses less digits than its factorization.

126723053190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365756.

The product of its (nonzero) digits is 68040, while the sum is 39.

The spelling of 126723053190 in words is "one hundred twenty-six billion, seven hundred twenty-three million, fifty-three thousand, one hundred ninety".