126192780452 has 12 divisors (see below), whose sum is σ = 228452447580. Its totient is φ = 60920652576.

The previous prime is 126192780451. The next prime is 126192780457. The reversal of 126192780452 is 254087291621.

It can be written as a sum of positive squares in 2 ways, for example, as 31578711616 + 94614068836 = 177704^2 + 307594^2 .

It is a junction number, because it is equal to n+sod(n) for n = 126192780397 and 126192780406.

It is not an unprimeable number, because it can be changed into a prime (126192780451) 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, 543934283 + ... + 543934514.

It is an arithmetic number, because the mean of its divisors is an integer number (19037703965).

Almost surely, 2^126192780452 is an apocalyptic number.

It is an amenable number.

126192780452 is a deficient number, since it is larger than the sum of its proper divisors (102259667128).

126192780452 is a wasteful number, since it uses less digits than its factorization.

126192780452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087868830 (or 1087868828 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 126192780452 in words is "one hundred twenty-six billion, one hundred ninety-two million, seven hundred eighty thousand, four hundred fifty-two".