126388901390 has 8 divisors (see below), whose sum is σ = 227500022520. Its totient is φ = 50555560552.

The previous prime is 126388901347. The next prime is 126388901491. The reversal of 126388901390 is 93109883621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×126388901390² (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 3 ways as a sum of consecutive naturals, for example, 6319445060 + ... + 6319445079.

It is an arithmetic number, because the mean of its divisors is an integer number (28437502815).

Almost surely, 2^126388901390 is an apocalyptic number.

126388901390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126388901390 is a deficient number, since it is larger than the sum of its proper divisors (101111121130).

126388901390 is a wasteful number, since it uses less digits than its factorization.

126388901390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12638890146.

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 126388901390 in words is "one hundred twenty-six billion, three hundred eighty-eight million, nine hundred one thousand, three hundred ninety".