72148959669 has 32 divisors (see below), whose sum is σ = 101931540480. Its totient is φ = 45315523008.

The previous prime is 72148959653. The next prime is 72148959683. The reversal of 72148959669 is 96695984127.

It is not a de Polignac number, because 72148959669 - 2⁴ = 72148959653 is a prime.

It is a super-2 number, since 2×72148959669² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72148959689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3967612 + ... + 3985754.

It is an arithmetic number, because the mean of its divisors is an integer number (3185360640).

Almost surely, 2^72148959669 is an apocalyptic number.

It is an amenable number.

72148959669 is a deficient number, since it is larger than the sum of its proper divisors (29782580811).

72148959669 is a wasteful number, since it uses less digits than its factorization.

72148959669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19281.

The product of its digits is 58786560, while the sum is 66.

The spelling of 72148959669 in words is "seventy-two billion, one hundred forty-eight million, nine hundred fifty-nine thousand, six hundred sixty-nine".