2764280381 has 2 divisors, whose sum is σ = 2764280382. Its totient is φ = 2764280380.

The previous prime is 2764280371. The next prime is 2764280411. The reversal of 2764280381 is 1830824672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1631352100 + 1132928281 = 40390^2 + 33659^2 .

It is a cyclic number.

It is not a de Polignac number, because 2764280381 - 2¹⁸ = 2764018237 is a prime.

It is a super-2 number, since 2×2764280381² = 15282492049563010322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2764280371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1382140190 + 1382140191.

It is an arithmetic number, because the mean of its divisors is an integer number (1382140191).

Almost surely, 2^2764280381 is an apocalyptic number.

It is an amenable number.

2764280381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2764280381 is an equidigital number, since it uses as much as digits as its factorization.

2764280381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 2764280381 is about 52576.4241937392. The cubic root of 2764280381 is about 1403.4405820293.

The spelling of 2764280381 in words is "two billion, seven hundred sixty-four million, two hundred eighty thousand, three hundred eighty-one".