21114454995 has 72 divisors (see below), whose sum is σ = 39958822800. Its totient is φ = 10300252032.

The previous prime is 21114454967. The next prime is 21114455003. The reversal of 21114454995 is 59945441112.

21114454995 is a `hidden beast` number, since 2 + 1 + 1 + 14 + 4 + 549 + 95 = 666.

It is not a de Polignac number, because 21114454995 - 2¹⁸ = 21114192851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 21114454995.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 448696 + ... + 493514.

It is an arithmetic number, because the mean of its divisors is an integer number (554983650).

Almost surely, 2^21114454995 is an apocalyptic number.

21114454995 is a deficient number, since it is larger than the sum of its proper divisors (18844367805).

21114454995 is a wasteful number, since it uses less digits than its factorization.

21114454995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44897 (or 44875 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The spelling of 21114454995 in words is "twenty-one billion, one hundred fourteen million, four hundred fifty-four thousand, nine hundred ninety-five".