13620512697 has 32 divisors (see below), whose sum is σ = 20119726080. Its totient is φ = 8126832000.

The previous prime is 13620512641. The next prime is 13620512699. The reversal of 13620512697 is 79621502631.

It is not a de Polignac number, because 13620512697 - 2¹⁶ = 13620447161 is a prime.

It is a super-2 number, since 2×13620512697² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13620512699) 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 31 ways as a sum of consecutive naturals, for example, 1779204 + ... + 1786842.

It is an arithmetic number, because the mean of its divisors is an integer number (628741440).

Almost surely, 2^13620512697 is an apocalyptic number.

It is an amenable number.

13620512697 is a deficient number, since it is larger than the sum of its proper divisors (6499213383).

13620512697 is a wasteful number, since it uses less digits than its factorization.

13620512697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8485.

The product of its (nonzero) digits is 136080, while the sum is 42.

The spelling of 13620512697 in words is "thirteen billion, six hundred twenty million, five hundred twelve thousand, six hundred ninety-seven".