126157908740 has 12 divisors (see below), whose sum is σ = 264931608396. Its totient is φ = 50463163488.

The previous prime is 126157908719. The next prime is 126157908743. The reversal of 126157908740 is 47809751621.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40430753476 + 85727155264 = 201074^2 + 292792^2 .

It is not an unprimeable number, because it can be changed into a prime (126157908743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3153947699 + ... + 3153947738.

It is an arithmetic number, because the mean of its divisors is an integer number (22077634033).

Almost surely, 2^126157908740 is an apocalyptic number.

126157908740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126157908740 is an abundant number, since it is smaller than the sum of its proper divisors (138773699656).

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

126157908740 is a wasteful number, since it uses less digits than its factorization.

126157908740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6307895446 (or 6307895444 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 50.

The spelling of 126157908740 in words is "one hundred twenty-six billion, one hundred fifty-seven million, nine hundred eight thousand, seven hundred forty".