72907553363 has 4 divisors (see below), whose sum is σ = 72917183160. Its totient is φ = 72897923568.

The previous prime is 72907553357. The next prime is 72907553399. The reversal of 72907553363 is 36335570927.

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 72907553363 - 2⁴ = 72907553347 is a prime.

It is a super-2 number, since 2×72907553363² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72907558363) 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, 4803533 + ... + 4818686.

It is an arithmetic number, because the mean of its divisors is an integer number (18229295790).

Almost surely, 2^72907553363 is an apocalyptic number.

72907553363 is a deficient number, since it is larger than the sum of its proper divisors (9629797).

72907553363 is an equidigital number, since it uses as much as digits as its factorization.

72907553363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9629796.

The product of its (nonzero) digits is 3572100, while the sum is 50.

The spelling of 72907553363 in words is "seventy-two billion, nine hundred seven million, five hundred fifty-three thousand, three hundred sixty-three".