2291638864796 has 24 divisors (see below), whose sum is σ = 4027551064320. Its totient is φ = 1140919704432.

The previous prime is 2291638864783. The next prime is 2291638864799. The reversal of 2291638864796 is 6974688361922.

It is a Smith number, since the sum of its digits (71) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2291638864799) 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, 269966 + ... + 2157813.

It is an arithmetic number, because the mean of its divisors is an integer number (167814627680).

Almost surely, 2^{2291638864796} is an apocalyptic number.

It is an amenable number.

2291638864796 is a deficient number, since it is larger than the sum of its proper divisors (1735912199524).

2291638864796 is a wasteful number, since it uses less digits than its factorization.

2291638864796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428793 (or 2428791 counting only the distinct ones).

The product of its digits is 376233984, while the sum is 71.

The spelling of 2291638864796 in words is "two trillion, two hundred ninety-one billion, six hundred thirty-eight million, eight hundred sixty-four thousand, seven hundred ninety-six".