72125444434 has 16 divisors (see below), whose sum is σ = 114587566488. Its totient is φ = 33930899712.

The previous prime is 72125444429. The next prime is 72125444449. The reversal of 72125444434 is 43444452127.

It can be written as a sum of positive squares in 4 ways, for example, as 71848122025 + 277322409 = 268045^2 + 16653^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215457 + ... + 436660.

Almost surely, 2^72125444434 is an apocalyptic number.

72125444434 is a deficient number, since it is larger than the sum of its proper divisors (42462122054).

72125444434 is a wasteful number, since it uses less digits than its factorization.

72125444434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655389.

The product of its digits is 430080, while the sum is 40.

The spelling of 72125444434 in words is "seventy-two billion, one hundred twenty-five million, four hundred forty-four thousand, four hundred thirty-four".