126573715984 has 45 divisors (see below), whose sum is σ = 254067448557. Its totient is φ = 61084629312.

The previous prime is 126573715967. The next prime is 126573715999. The reversal of 126573715984 is 489517375621.

The square root of 126573715984 is 355772.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 66372186384 + 60201529600 = 257628^2 + 245360^2 .

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 41268019 + ... + 41271085.

Almost surely, 2^126573715984 is an apocalyptic number.

126573715984 is the 355772-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 126573715984

126573715984 is an abundant number, since it is smaller than the sum of its proper divisors (127493732573).

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

126573715984 is an frugal number, since it uses more digits than its factorization.

126573715984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6200 (or 3098 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 58.

The spelling of 126573715984 in words is "one hundred twenty-six billion, five hundred seventy-three million, seven hundred fifteen thousand, nine hundred eighty-four".