2452999681 has 16 divisors (see below), whose sum is σ = 2705904000. Its totient is φ = 2205216000.

The previous prime is 2452999667. The next prime is 2452999687. The reversal of 2452999681 is 1869992542.

It is a cyclic number.

It is not a de Polignac number, because 2452999681 - 2¹⁵ = 2452966913 is a prime.

It is a super-2 number, since 2×2452999681² = 12034414869972203522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2452999687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 377145 + ... + 383593.

It is an arithmetic number, because the mean of its divisors is an integer number (169119000).

Almost surely, 2^2452999681 is an apocalyptic number.

It is an amenable number.

2452999681 is a deficient number, since it is larger than the sum of its proper divisors (252904319).

2452999681 is a wasteful number, since it uses less digits than its factorization.

2452999681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6840.

The product of its digits is 2799360, while the sum is 55.

The square root of 2452999681 is about 49527.7667677435. The cubic root of 2452999681 is about 1348.6497117851.

The spelling of 2452999681 in words is "two billion, four hundred fifty-two million, nine hundred ninety-nine thousand, six hundred eighty-one".