72857929445 has 8 divisors (see below), whose sum is σ = 99919446144. Its totient is φ = 49959723024.

The previous prime is 72857929433. The next prime is 72857929477. The reversal of 72857929445 is 54492975827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72857929445 - 2⁸ = 72857929189 is a prime.

It is a congruent number.

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, 1040827529 + ... + 1040827598.

It is an arithmetic number, because the mean of its divisors is an integer number (12489930768).

Almost surely, 2^72857929445 is an apocalyptic number.

It is an amenable number.

72857929445 is a deficient number, since it is larger than the sum of its proper divisors (27061516699).

72857929445 is a wasteful number, since it uses less digits than its factorization.

72857929445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2081655139.

The product of its digits is 50803200, while the sum is 62.

The spelling of 72857929445 in words is "seventy-two billion, eight hundred fifty-seven million, nine hundred twenty-nine thousand, four hundred forty-five".