2546451663 has 16 divisors (see below), whose sum is σ = 3920313600. Its totient is φ = 1440112896.

The previous prime is 2546451659. The next prime is 2546451667. The reversal of 2546451663 is 3661546452.

It is an interprime number because it is at equal distance from previous prime (2546451659) and next prime (2546451667).

It is not a de Polignac number, because 2546451663 - 2² = 2546451659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2546451667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 623013 + ... + 627086.

It is an arithmetic number, because the mean of its divisors is an integer number (245019600).

Almost surely, 2^2546451663 is an apocalyptic number.

2546451663 is a deficient number, since it is larger than the sum of its proper divisors (1373861937).

2546451663 is a wasteful number, since it uses less digits than its factorization.

2546451663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250206.

The product of its digits is 518400, while the sum is 42.

The square root of 2546451663 is about 50462.3786894752. The cubic root of 2546451663 is about 1365.5632239442.

The spelling of 2546451663 in words is "two billion, five hundred forty-six million, four hundred fifty-one thousand, six hundred sixty-three".