126372235780 has 36 divisors (see below), whose sum is σ = 308709321228. Its totient is φ = 43327623360.

The previous prime is 126372235777. The next prime is 126372235789. The reversal of 126372235780 is 87532273621.

It can be written as a sum of positive squares in 2 ways, for example, as 67684266244 + 58687969536 = 260162^2 + 242256^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 126372235780.

It is not an unprimeable number, because it can be changed into a prime (126372235789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64474651 + ... + 64476610.

It is an arithmetic number, because the mean of its divisors is an integer number (8575258923).

Almost surely, 2^126372235780 is an apocalyptic number.

126372235780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126372235780 is an abundant number, since it is smaller than the sum of its proper divisors (182337085448).

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

126372235780 is a wasteful number, since it uses less digits than its factorization.

126372235780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128951284 (or 128951275 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 126372235780 in words is "one hundred twenty-six billion, three hundred seventy-two million, two hundred thirty-five thousand, seven hundred eighty".