2451681371 has 4 divisors (see below), whose sum is σ = 2451923952. Its totient is φ = 2451438792.

The previous prime is 2451681361. The next prime is 2451681391. The reversal of 2451681371 is 1731861542.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2451681371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2451681341) 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 3 ways as a sum of consecutive naturals, for example, 105440 + ... + 126573.

It is an arithmetic number, because the mean of its divisors is an integer number (612980988).

Almost surely, 2^2451681371 is an apocalyptic number.

2451681371 is a deficient number, since it is larger than the sum of its proper divisors (242581).

2451681371 is a wasteful number, since it uses less digits than its factorization.

2451681371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242580.

The product of its digits is 40320, while the sum is 38.

The square root of 2451681371 is about 49514.4561820081. The cubic root of 2451681371 is about 1348.4080679160.

The spelling of 2451681371 in words is "two billion, four hundred fifty-one million, six hundred eighty-one thousand, three hundred seventy-one".