2654451391 has 4 divisors (see below), whose sum is σ = 2654609112. Its totient is φ = 2654293672.

The previous prime is 2654451379. The next prime is 2654451407. The reversal of 2654451391 is 1931544562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1931544562 = 2 ⋅965772281.

It is a cyclic number.

It is not a de Polignac number, because 2654451391 - 2³¹ = 506967743 is a prime.

It is a super-2 number, since 2×2654451391² = 14092224374363669762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2654451301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50125 + ... + 88438.

It is an arithmetic number, because the mean of its divisors is an integer number (663652278).

Almost surely, 2^2654451391 is an apocalyptic number.

2654451391 is a deficient number, since it is larger than the sum of its proper divisors (157721).

2654451391 is a wasteful number, since it uses less digits than its factorization.

2654451391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157720.

The product of its digits is 129600, while the sum is 40.

The square root of 2654451391 is about 51521.3682951064. The cubic root of 2654451391 is about 1384.6019075949.

The spelling of 2654451391 in words is "two billion, six hundred fifty-four million, four hundred fifty-one thousand, three hundred ninety-one".