2191518714896 has 80 divisors (see below), whose sum is σ = 4858123345920. Its totient is φ = 938163461760.

The previous prime is 2191518714863. The next prime is 2191518714899. The reversal of 2191518714896 is 6984178151912.

It is not an unprimeable number, because it can be changed into a prime (2191518714899) 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, 646273361 + ... + 646276751.

It is an arithmetic number, because the mean of its divisors is an integer number (60726541824).

Almost surely, 2^{2191518714896} is an apocalyptic number.

It is an amenable number.

2191518714896 is an abundant number, since it is smaller than the sum of its proper divisors (2666604631024).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2191518714896 is a wasteful number, since it uses less digits than its factorization.

2191518714896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8212 (or 8206 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 62.

The spelling of 2191518714896 in words is "two trillion, one hundred ninety-one billion, five hundred eighteen million, seven hundred fourteen thousand, eight hundred ninety-six".