126942738590 has 16 divisors (see below), whose sum is σ = 228501965088. Its totient is φ = 50775976416.

The previous prime is 126942738547. The next prime is 126942738701. The reversal of 126942738590 is 95837249621.

It is a super-2 number, since 2×126942738590² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458444 + ... + 681216.

It is an arithmetic number, because the mean of its divisors is an integer number (14281372818).

It is a 1-persistent number, because it is pandigital, but 2⋅126942738590 = 253885477180 is not.

Almost surely, 2^126942738590 is an apocalyptic number.

126942738590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126942738590 is a deficient number, since it is larger than the sum of its proper divisors (101559226498).

126942738590 is a wasteful number, since it uses less digits than its factorization.

126942738590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279763.

The product of its (nonzero) digits is 6531840, while the sum is 56.

The spelling of 126942738590 in words is "one hundred twenty-six billion, nine hundred forty-two million, seven hundred thirty-eight thousand, five hundred ninety".