13530544497 has 6 divisors (see below), whose sum is σ = 19544119842. Its totient is φ = 9020362992.

The previous prime is 13530544483. The next prime is 13530544543. The reversal of 13530544497 is 79444503531.

13530544497 is a `hidden beast` number, since 1 + 35 + 30 + 544 + 49 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13484086641 + 46457856 = 116121^2 + 6816^2 .

It is not a de Polignac number, because 13530544497 - 2⁷ = 13530544369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13530544457) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 751696908 + ... + 751696925.

It is an arithmetic number, because the mean of its divisors is an integer number (3257353307).

Almost surely, 2^13530544497 is an apocalyptic number.

It is an amenable number.

13530544497 is a deficient number, since it is larger than the sum of its proper divisors (6013575345).

13530544497 is a wasteful number, since it uses less digits than its factorization.

13530544497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503393839 (or 1503393836 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 13530544497 in words is "thirteen billion, five hundred thirty million, five hundred forty-four thousand, four hundred ninety-seven".