73617009772 has 12 divisors (see below), whose sum is σ = 128833754896. Its totient is φ = 36807365520.

The previous prime is 73617009751. The next prime is 73617009773. The reversal of 73617009772 is 27790071637.

It is not an unprimeable number, because it can be changed into a prime (73617009773) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130128 + ... + 405175.

Almost surely, 2^73617009772 is an apocalyptic number.

It is an amenable number.

73617009772 is a deficient number, since it is larger than the sum of its proper divisors (55216745124).

73617009772 is a wasteful number, since it uses less digits than its factorization.

73617009772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569688 (or 569686 counting only the distinct ones).

The product of its (nonzero) digits is 777924, while the sum is 49.

The spelling of 73617009772 in words is "seventy-three billion, six hundred seventeen million, nine thousand, seven hundred seventy-two".