126238273910 has 32 divisors (see below), whose sum is σ = 260156473920. Its totient is φ = 43203975552.

The previous prime is 126238273877. The next prime is 126238273913. The reversal of 126238273910 is 19372832621.

It is a happy number.

It is a super-2 number, since 2×126238273910² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126238273913) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1579865 + ... + 1657844.

It is an arithmetic number, because the mean of its divisors is an integer number (8129889810).

Almost surely, 2^126238273910 is an apocalyptic number.

126238273910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126238273910 is an abundant number, since it is smaller than the sum of its proper divisors (133918200010).

126238273910 is a wasteful number, since it uses less digits than its factorization.

126238273910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3238280.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 126238273910 in words is "one hundred twenty-six billion, two hundred thirty-eight million, two hundred seventy-three thousand, nine hundred ten".