13203916977 has 64 divisors (see below), whose sum is σ = 18960480000. Its totient is φ = 8161440768.

The previous prime is 13203916939. The next prime is 13203916987. The reversal of 13203916977 is 77961930231.

It is a happy number.

It is not a de Polignac number, because 13203916977 - 2⁸ = 13203916721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13203916907) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37833399 + ... + 37833747.

It is an arithmetic number, because the mean of its divisors is an integer number (296257500).

Almost surely, 2^13203916977 is an apocalyptic number.

It is an amenable number.

13203916977 is a deficient number, since it is larger than the sum of its proper divisors (5756563023).

13203916977 is a wasteful number, since it uses less digits than its factorization.

13203916977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610.

The product of its (nonzero) digits is 428652, while the sum is 48.

The spelling of 13203916977 in words is "thirteen billion, two hundred three million, nine hundred sixteen thousand, nine hundred seventy-seven".