13072947855 has 64 divisors (see below), whose sum is σ = 23476981248. Its totient is φ = 6156034560.

The previous prime is 13072947847. The next prime is 13072947857. The reversal of 13072947855 is 55874927031.

It is not a de Polignac number, because 13072947855 - 2³ = 13072947847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13072947798 and 13072947807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13072947857) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4131504 + ... + 4134666.

It is an arithmetic number, because the mean of its divisors is an integer number (366827832).

Almost surely, 2^13072947855 is an apocalyptic number.

13072947855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13072947855 is a deficient number, since it is larger than the sum of its proper divisors (10404033393).

13072947855 is a wasteful number, since it uses less digits than its factorization.

13072947855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3896.

The product of its (nonzero) digits is 2116800, while the sum is 51.

The spelling of 13072947855 in words is "thirteen billion, seventy-two million, nine hundred forty-seven thousand, eight hundred fifty-five".