73406666733 has 4 divisors (see below), whose sum is σ = 97875555648. Its totient is φ = 48937777820.

The previous prime is 73406666681. The next prime is 73406666741. The reversal of 73406666733 is 33766660437.

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 73406666733 - 2²⁶ = 73339557869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73406666233) 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, 12234444453 + ... + 12234444458.

It is an arithmetic number, because the mean of its divisors is an integer number (24468888912).

Almost surely, 2^73406666733 is an apocalyptic number.

It is an amenable number.

73406666733 is a deficient number, since it is larger than the sum of its proper divisors (24468888915).

73406666733 is a wasteful number, since it uses less digits than its factorization.

73406666733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24468888914.

The product of its (nonzero) digits is 6858432, while the sum is 51.

The spelling of 73406666733 in words is "seventy-three billion, four hundred six million, six hundred sixty-six thousand, seven hundred thirty-three".