126380731092 has 144 divisors (see below), whose sum is σ = 370710197760. Its totient is φ = 32802073920.

The previous prime is 126380731091. The next prime is 126380731093. The reversal of 126380731092 is 290137083621.

It is an interprime number because it is at equal distance from previous prime (126380731091) and next prime (126380731093).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126380731091) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16939659 + ... + 16947117.

Almost surely, 2^126380731092 is an apocalyptic number.

126380731092 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 126380731092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185355098880).

126380731092 is an abundant number, since it is smaller than the sum of its proper divisors (244329466668).

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

126380731092 is a wasteful number, since it uses less digits than its factorization.

126380731092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9162 (or 9149 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The spelling of 126380731092 in words is "one hundred twenty-six billion, three hundred eighty million, seven hundred thirty-one thousand, ninety-two".