1886964887913 has 16 divisors (see below), whose sum is σ = 2914763769216. Its totient is φ = 1063494887040.

The previous prime is 1886964887869. The next prime is 1886964887917. The reversal of 1886964887913 is 3197884696881.

It is a happy number.

It is not a de Polignac number, because 1886964887913 - 2⁶ = 1886964887849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1886964887917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 615446898 + ... + 615449963.

It is an arithmetic number, because the mean of its divisors is an integer number (182172735576).

Almost surely, 2^{1886964887913} is an apocalyptic number.

It is an amenable number.

1886964887913 is a deficient number, since it is larger than the sum of its proper divisors (1027798881303).

1886964887913 is a wasteful number, since it uses less digits than its factorization.

1886964887913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230896944.

The product of its digits is 1003290624, while the sum is 78.

The spelling of 1886964887913 in words is "one trillion, eight hundred eighty-six billion, nine hundred sixty-four million, eight hundred eighty-seven thousand, nine hundred thirteen".