72769089170 has 8 divisors (see below), whose sum is σ = 130984360524. Its totient is φ = 29107635664.

The previous prime is 72769089167. The next prime is 72769089181. The reversal of 72769089170 is 7198096727.

It can be written as a sum of positive squares in 2 ways, for example, as 65958053329 + 6811035841 = 256823^2 + 82529^2 .

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

It is a super-2 number, since 2×72769089170² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3638454449 + ... + 3638454468.

Almost surely, 2^72769089170 is an apocalyptic number.

72769089170 is a deficient number, since it is larger than the sum of its proper divisors (58215271354).

72769089170 is a wasteful number, since it uses less digits than its factorization.

72769089170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7276908924.

The product of its (nonzero) digits is 2667168, while the sum is 56.

The spelling of 72769089170 in words is "seventy-two billion, seven hundred sixty-nine million, eighty-nine thousand, one hundred seventy".