72000005999999 has 24 divisors (see below), whose sum is σ = 91370039778000. Its totient is φ = 56103391169280.

The previous prime is 72000005999951. The next prime is 72000006000001. The reversal of 72000005999999 is 99999950000027.

It is not a de Polignac number, because 72000005999999 - 2⁸ = 72000005999743 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 (72000005999399) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65454557 + ... + 66545465.

It is an arithmetic number, because the mean of its divisors is an integer number (3807084990750).

Almost surely, 2^{72000005999999} is an apocalyptic number.

72000005999999 is a deficient number, since it is larger than the sum of its proper divisors (19370033778001).

72000005999999 is a wasteful number, since it uses less digits than its factorization.

72000005999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213383 (or 1213376 counting only the distinct ones).

The product of its (nonzero) digits is 37200870, while the sum is 68.

The spelling of 72000005999999 in words is "seventy-two trillion, five million, nine hundred ninety-nine thousand, nine hundred ninety-nine".