126299013372 has 96 divisors (see below), whose sum is σ = 374432486400. Its totient is φ = 36064875456.

The previous prime is 126299013349. The next prime is 126299013439. The reversal of 126299013372 is 273310992621.

126299013372 is a `hidden beast` number, since 1 + 2 + 629 + 9 + 0 + 13 + 3 + 7 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1305793 + ... + 1399175.

It is an arithmetic number, because the mean of its divisors is an integer number (3900338400).

Almost surely, 2^126299013372 is an apocalyptic number.

126299013372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126299013372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187216243200).

126299013372 is an abundant number, since it is smaller than the sum of its proper divisors (248133473028).

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

126299013372 is a wasteful number, since it uses less digits than its factorization.

126299013372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95192 (or 95184 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 126299013372 in words is "one hundred twenty-six billion, two hundred ninety-nine million, thirteen thousand, three hundred seventy-two".