72669792239 has 4 divisors (see below), whose sum is σ = 79276137000. Its totient is φ = 66063447480.

The previous prime is 72669792199. The next prime is 72669792241. The reversal of 72669792239 is 93229796627.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72669792239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72669792289) 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, 3303172364 + ... + 3303172385.

It is an arithmetic number, because the mean of its divisors is an integer number (19819034250).

Almost surely, 2^72669792239 is an apocalyptic number.

72669792239 is a deficient number, since it is larger than the sum of its proper divisors (6606344761).

72669792239 is a wasteful number, since it uses less digits than its factorization.

72669792239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6606344760.

The product of its digits is 30862944, while the sum is 62.

The spelling of 72669792239 in words is "seventy-two billion, six hundred sixty-nine million, seven hundred ninety-two thousand, two hundred thirty-nine".