13720851577 has 8 divisors (see below), whose sum is σ = 14941036800. Its totient is φ = 12550469904.

The previous prime is 13720851569. The next prime is 13720851581. The reversal of 13720851577 is 77515802731.

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 13720851577 - 2³ = 13720851569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13720851587) 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, 12450313 + ... + 12451414.

It is an arithmetic number, because the mean of its divisors is an integer number (1867629600).

Almost surely, 2^13720851577 is an apocalyptic number.

It is an amenable number.

13720851577 is a deficient number, since it is larger than the sum of its proper divisors (1220185223).

13720851577 is a wasteful number, since it uses less digits than its factorization.

13720851577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24901775.

The product of its (nonzero) digits is 411600, while the sum is 46.

The spelling of 13720851577 in words is "thirteen billion, seven hundred twenty million, eight hundred fifty-one thousand, five hundred seventy-seven".