2451883381 has 2 divisors, whose sum is σ = 2451883382. Its totient is φ = 2451883380.

The previous prime is 2451883363. The next prime is 2451883391. The reversal of 2451883381 is 1833881542.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2355549156 + 96334225 = 48534^2 + 9815^2 .

It is a cyclic number.

It is not a de Polignac number, because 2451883381 - 2¹⁵ = 2451850613 is a prime.

It is a super-2 number, since 2×2451883381² = 12023464228047982322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2451883321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1225941690 + 1225941691.

It is an arithmetic number, because the mean of its divisors is an integer number (1225941691).

Almost surely, 2^2451883381 is an apocalyptic number.

It is an amenable number.

2451883381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2451883381 is an equidigital number, since it uses as much as digits as its factorization.

2451883381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 43.

The square root of 2451883381 is about 49516.4960492965. The cubic root of 2451883381 is about 1348.4451016073.

The spelling of 2451883381 in words is "two billion, four hundred fifty-one million, eight hundred eighty-three thousand, three hundred eighty-one".