13675197481 has 9 divisors (see below), whose sum is σ = 15032829469. Its totient is φ = 12430828300.

The previous prime is 13675197479. The next prime is 13675197517. The reversal of 13675197481 is 18479157631.

The square root of 13675197481 is 116941.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 13675197481 - 2¹ = 13675197479 is a prime.

It is a super-2 number, since 2×13675197481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13675197451) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1281036 + ... + 1291666.

Almost surely, 2^13675197481 is an apocalyptic number.

13675197481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13675197481 is the 116941-st square number.

13675197481 is the 58471-st centered octagonal number.

It is an amenable number.

13675197481 is a deficient number, since it is larger than the sum of its proper divisors (1357631988).

13675197481 is an frugal number, since it uses more digits than its factorization.

13675197481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21284 (or 10642 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 52.

The spelling of 13675197481 in words is "thirteen billion, six hundred seventy-five million, one hundred ninety-seven thousand, four hundred eighty-one".