73073240670641 has 4 divisors (see below), whose sum is σ = 74627990472192. Its totient is φ = 71518490869092.

The previous prime is 73073240670623. The next prime is 73073240670653. The reversal of 73073240670641 is 14607604237037.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73073240670641 - 2³⁴ = 73056060801457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 73073240670641.

It is not an unprimeable number, because it can be changed into a prime (73073240670601) 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, 777374900705 + ... + 777374900798.

It is an arithmetic number, because the mean of its divisors is an integer number (18656997618048).

Almost surely, 2^{73073240670641} is an apocalyptic number.

It is an amenable number.

73073240670641 is a deficient number, since it is larger than the sum of its proper divisors (1554749801551).

73073240670641 is a wasteful number, since it uses less digits than its factorization.

73073240670641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554749801550.

The product of its (nonzero) digits is 3556224, while the sum is 50.

The spelling of 73073240670641 in words is "seventy-three trillion, seventy-three billion, two hundred forty million, six hundred seventy thousand, six hundred forty-one".