126259591406 has 48 divisors (see below), whose sum is σ = 212270103360. Its totient is φ = 56232408960.

The previous prime is 126259591399. The next prime is 126259591411. The reversal of 126259591406 is 604195952621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29629316 + ... + 29633576.

It is an arithmetic number, because the mean of its divisors is an integer number (4422293820).

Almost surely, 2^126259591406 is an apocalyptic number.

126259591406 is a deficient number, since it is larger than the sum of its proper divisors (86010511954).

126259591406 is a wasteful number, since it uses less digits than its factorization.

126259591406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7341 (or 7328 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 50.

The spelling of 126259591406 in words is "one hundred twenty-six billion, two hundred fifty-nine million, five hundred ninety-one thousand, four hundred six".