72727200000001 has 4 divisors (see below), whose sum is σ = 72768545766400. Its totient is φ = 72685854233604.

The previous prime is 72727199999969. The next prime is 72727200000031. The reversal of 72727200000001 is 10000000272727.

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 72727200000001 - 2⁵ = 72727199999969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72727200000031) 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, 20672880561 + ... + 20672884078.

It is an arithmetic number, because the mean of its divisors is an integer number (18192136441600).

Almost surely, 2^{72727200000001} is an apocalyptic number.

It is an amenable number.

72727200000001 is a deficient number, since it is larger than the sum of its proper divisors (41345766399).

72727200000001 is a wasteful number, since it uses less digits than its factorization.

72727200000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41345766398.

The product of its (nonzero) digits is 2744, while the sum is 28.

Adding to 72727200000001 its reverse (10000000272727), we get a palindrome (82727200272728).

The spelling of 72727200000001 in words is "seventy-two trillion, seven hundred twenty-seven billion, two hundred million, one", and thus it is an aban number.