73605013778 has 16 divisors (see below), whose sum is σ = 110691795456. Its totient is φ = 36707842080.

The previous prime is 73605013753. The next prime is 73605013787. The reversal of 73605013778 is 87731050637.

It is a happy 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, 1627175 + ... + 1671797.

It is an arithmetic number, because the mean of its divisors is an integer number (6918237216).

Almost surely, 2^73605013778 is an apocalyptic number.

73605013778 is a deficient number, since it is larger than the sum of its proper divisors (37086781678).

73605013778 is a wasteful number, since it uses less digits than its factorization.

73605013778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46729.

The product of its (nonzero) digits is 740880, while the sum is 47.

The spelling of 73605013778 in words is "seventy-three billion, six hundred five million, thirteen thousand, seven hundred seventy-eight".