72139696483 has 4 divisors (see below), whose sum is σ = 72143520480. Its totient is φ = 72135872488.

The previous prime is 72139696481. The next prime is 72139696487. The reversal of 72139696483 is 38469693127.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 72139696483 - 2¹ = 72139696481 is a prime.

It is a super-3 number, since 3×72139696483³ (a number of 34 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72139696481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1883560 + ... + 1921477.

It is an arithmetic number, because the mean of its divisors is an integer number (18035880120).

Almost surely, 2^72139696483 is an apocalyptic number.

72139696483 is a deficient number, since it is larger than the sum of its proper divisors (3823997).

72139696483 is a wasteful number, since it uses less digits than its factorization.

72139696483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3823996.

The product of its digits is 11757312, while the sum is 58.

The spelling of 72139696483 in words is "seventy-two billion, one hundred thirty-nine million, six hundred ninety-six thousand, four hundred eighty-three".