73646144705 has 24 divisors (see below), whose sum is σ = 102848538240. Its totient is φ = 50478338400.

The previous prime is 73646144657. The next prime is 73646144711. The reversal of 73646144705 is 50744164637.

It is not a de Polignac number, because 73646144705 - 2³⁶ = 4926667969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73646144705.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 512066 + ... + 639924.

It is an arithmetic number, because the mean of its divisors is an integer number (4285355760).

Almost surely, 2^73646144705 is an apocalyptic number.

It is an amenable number.

73646144705 is a deficient number, since it is larger than the sum of its proper divisors (29202393535).

73646144705 is a wasteful number, since it uses less digits than its factorization.

73646144705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130229 (or 130222 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 47.

The spelling of 73646144705 in words is "seventy-three billion, six hundred forty-six million, one hundred forty-four thousand, seven hundred five".