73456928642 has 8 divisors (see below), whose sum is σ = 110209930236. Its totient is φ = 36720285232.

The previous prime is 73456928627. The next prime is 73456928653. The reversal of 73456928642 is 24682965437.

It can be written as a sum of positive squares in 2 ways, for example, as 72824959321 + 631969321 = 269861^2 + 25139^2 .

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

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, 4078313 + ... + 4096284.

Almost surely, 2^73456928642 is an apocalyptic number.

73456928642 is a deficient number, since it is larger than the sum of its proper divisors (36753001594).

73456928642 is a wasteful number, since it uses less digits than its factorization.

73456928642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8179092.

The product of its digits is 17418240, while the sum is 56.

The spelling of 73456928642 in words is "seventy-three billion, four hundred fifty-six million, nine hundred twenty-eight thousand, six hundred forty-two".