2111644264454 has 16 divisors (see below), whose sum is σ = 3172648915968. Its totient is φ = 1054094892552.

The previous prime is 2111644264399. The next prime is 2111644264463. The reversal of 2111644264454 is 4544624461112.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17696339 + ... + 17815265.

It is an arithmetic number, because the mean of its divisors is an integer number (198290557248).

Almost surely, 2^{2111644264454} is an apocalyptic number.

2111644264454 is a deficient number, since it is larger than the sum of its proper divisors (1061004651514).

2111644264454 is a wasteful number, since it uses less digits than its factorization.

2111644264454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133379.

The product of its digits is 737280, while the sum is 44.

The spelling of 2111644264454 in words is "two trillion, one hundred eleven billion, six hundred forty-four million, two hundred sixty-four thousand, four hundred fifty-four".