126913765624 has 32 divisors (see below), whose sum is σ = 238949805600. Its totient is φ = 63194359680.

The previous prime is 126913765621. The next prime is 126913765631. The reversal of 126913765624 is 426567319621.

It is a super-2 number, since 2×126913765624² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126913765621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1866594 + ... + 1933390.

It is an arithmetic number, because the mean of its divisors is an integer number (7467181425).

Almost surely, 2^126913765624 is an apocalyptic number.

It is an amenable number.

126913765624 is a deficient number, since it is larger than the sum of its proper divisors (112036039976).

126913765624 is a wasteful number, since it uses less digits than its factorization.

126913765624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67783 (or 67779 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 52.

The spelling of 126913765624 in words is "one hundred twenty-six billion, nine hundred thirteen million, seven hundred sixty-five thousand, six hundred twenty-four".