13915648747 has 32 divisors (see below), whose sum is σ = 19139710464. Its totient is φ = 9765100800.

The previous prime is 13915648739. The next prime is 13915648771. The reversal of 13915648747 is 74784651931.

It is not a de Polignac number, because 13915648747 - 2³ = 13915648739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13915648247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 128493 + ... + 210574.

It is an arithmetic number, because the mean of its divisors is an integer number (598115952).

Almost surely, 2^13915648747 is an apocalyptic number.

13915648747 is a deficient number, since it is larger than the sum of its proper divisors (5224061717).

13915648747 is a wasteful number, since it uses less digits than its factorization.

13915648747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339139.

The product of its digits is 5080320, while the sum is 55.

The spelling of 13915648747 in words is "thirteen billion, nine hundred fifteen million, six hundred forty-eight thousand, seven hundred forty-seven".