2891684468057 has 8 divisors (see below), whose sum is σ = 3605216999232. Its totient is φ = 2253260624400.

The previous prime is 2891684468053. The next prime is 2891684468077. The reversal of 2891684468057 is 7508644861982.

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 2891684468057 - 2² = 2891684468053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2891684468053) 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, 18777171794 + ... + 18777171947.

It is an arithmetic number, because the mean of its divisors is an integer number (450652124904).

Almost surely, 2^{2891684468057} is an apocalyptic number.

It is an amenable number.

2891684468057 is a deficient number, since it is larger than the sum of its proper divisors (713532531175).

2891684468057 is a wasteful number, since it uses less digits than its factorization.

2891684468057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37554343759.

The product of its (nonzero) digits is 185794560, while the sum is 68.

The spelling of 2891684468057 in words is "two trillion, eight hundred ninety-one billion, six hundred eighty-four million, four hundred sixty-eight thousand, fifty-seven".