13931252697 has 8 divisors (see below), whose sum is σ = 19382612544. Its totient is φ = 8883697328.

The previous prime is 13931252641. The next prime is 13931252711. The reversal of 13931252697 is 79625213931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13931252697 - 2⁸ = 13931252441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13931252627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100951038 + ... + 100951175.

It is an arithmetic number, because the mean of its divisors is an integer number (2422826568).

Almost surely, 2^13931252697 is an apocalyptic number.

It is an amenable number.

13931252697 is a deficient number, since it is larger than the sum of its proper divisors (5451359847).

13931252697 is a wasteful number, since it uses less digits than its factorization.

13931252697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201902239.

The product of its digits is 612360, while the sum is 48.

The spelling of 13931252697 in words is "thirteen billion, nine hundred thirty-one million, two hundred fifty-two thousand, six hundred ninety-seven".