1317890899051 has 8 divisors (see below), whose sum is σ = 1337201045600. Its totient is φ = 1298614721472.

The previous prime is 1317890899021. The next prime is 1317890899099. The reversal of 1317890899051 is 1509980987131.

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 1317890899051 - 2⁵ = 1317890899019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1317890899021) 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, 8414076 + ... + 8569273.

It is an arithmetic number, because the mean of its divisors is an integer number (167150130700).

Almost surely, 2^{1317890899051} is an apocalyptic number.

1317890899051 is a deficient number, since it is larger than the sum of its proper divisors (19310146549).

1317890899051 is a wasteful number, since it uses less digits than its factorization.

1317890899051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16984485.

The product of its (nonzero) digits is 4898880, while the sum is 61.

The spelling of 1317890899051 in words is "one trillion, three hundred seventeen billion, eight hundred ninety million, eight hundred ninety-nine thousand, fifty-one".