126692401590 has 32 divisors (see below), whose sum is σ = 337846404960. Its totient is φ = 33784640352.

The previous prime is 126692401579. The next prime is 126692401613. The reversal of 126692401590 is 95104296621.

126692401590 is a `hidden beast` number, since 12 + 6 + 6 + 9 + 2 + 40 + 1 + 590 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234615289 + ... + 234615828.

It is an arithmetic number, because the mean of its divisors is an integer number (10557700155).

Almost surely, 2^126692401590 is an apocalyptic number.

126692401590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126692401590 is an abundant number, since it is smaller than the sum of its proper divisors (211154003370).

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

126692401590 is a wasteful number, since it uses less digits than its factorization.

126692401590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469231133 (or 469231127 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 126692401590 in words is "one hundred twenty-six billion, six hundred ninety-two million, four hundred one thousand, five hundred ninety".