73290023644 has 24 divisors (see below), whose sum is σ = 129478568688. Its totient is φ = 36296265600.

The previous prime is 73290023629. The next prime is 73290023659. The reversal of 73290023644 is 44632009237.

It is an interprime number because it is at equal distance from previous prime (73290023629) and next prime (73290023659).

It is a junction number, because it is equal to n+sod(n) for n = 73290023597 and 73290023606.

It is a congruent 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, 3370792 + ... + 3392464.

It is an arithmetic number, because the mean of its divisors is an integer number (5394940362).

Almost surely, 2^73290023644 is an apocalyptic number.

It is an amenable number.

73290023644 is a deficient number, since it is larger than the sum of its proper divisors (56188545044).

73290023644 is a wasteful number, since it uses less digits than its factorization.

73290023644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29685 (or 29683 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 40.

The spelling of 73290023644 in words is "seventy-three billion, two hundred ninety million, twenty-three thousand, six hundred forty-four".