126617837920 has 96 divisors (see below), whose sum is σ = 344893889088. Its totient is φ = 43027611648.

The previous prime is 126617837869. The next prime is 126617837923. The reversal of 126617837920 is 29738716621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126617837923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373669 + ... + 626788.

It is an arithmetic number, because the mean of its divisors is an integer number (3592644678).

Almost surely, 2^126617837920 is an apocalyptic number.

126617837920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126617837920 is an abundant number, since it is smaller than the sum of its proper divisors (218276051168).

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

126617837920 is a wasteful number, since it uses less digits than its factorization.

126617837920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000592 (or 1000584 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 126617837920 in words is "one hundred twenty-six billion, six hundred seventeen million, eight hundred thirty-seven thousand, nine hundred twenty".