2680901381 has 2 divisors, whose sum is σ = 2680901382. Its totient is φ = 2680901380.

The previous prime is 2680901347. The next prime is 2680901393. The reversal of 2680901381 is 1831090862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2172398881 + 508502500 = 46609^2 + 22550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2680901381 is a prime.

It is a super-2 number, since 2×2680901381² = 14374464429295414322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2680901081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340450690 + 1340450691.

It is an arithmetic number, because the mean of its divisors is an integer number (1340450691).

Almost surely, 2^2680901381 is an apocalyptic number.

It is an amenable number.

2680901381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2680901381 is an equidigital number, since it uses as much as digits as its factorization.

2680901381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 2680901381 is about 51777.4215368050. The cubic root of 2680901381 is about 1389.1856211622.

The spelling of 2680901381 in words is "two billion, six hundred eighty million, nine hundred one thousand, three hundred eighty-one".