2721426453 has 12 divisors (see below), whose sum is σ = 4162181868. Its totient is φ = 1707561600.

The previous prime is 2721426451. The next prime is 2721426503. The reversal of 2721426453 is 3546241272.

2721426453 is a `hidden beast` number, since 2 + 7 + 2 + 1 + 4 + 2 + 645 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2476754289 + 244672164 = 49767^2 + 15642^2 .

It is not a de Polignac number, because 2721426453 - 2¹ = 2721426451 is a prime.

It is a super-2 number, since 2×2721426453² = 14812323878176322418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2721426451) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8893398 + ... + 8893703.

It is an arithmetic number, because the mean of its divisors is an integer number (346848489).

Almost surely, 2^2721426453 is an apocalyptic number.

It is an amenable number.

2721426453 is a deficient number, since it is larger than the sum of its proper divisors (1440755415).

2721426453 is a wasteful number, since it uses less digits than its factorization.

2721426453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17787124 (or 17787121 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 2721426453 is about 52167.2929429925. The cubic root of 2721426453 is about 1396.1503857182.

The spelling of 2721426453 in words is "two billion, seven hundred twenty-one million, four hundred twenty-six thousand, four hundred fifty-three".