2681147149157 has 2 divisors, whose sum is σ = 2681147149158. Its totient is φ = 2681147149156.

The previous prime is 2681147149141. The next prime is 2681147149201. The reversal of 2681147149157 is 7519417411862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2043910559716 + 637236589441 = 1429654^2 + 798271^2 .

It is a cyclic number.

It is not a de Polignac number, because 2681147149157 - 2⁴ = 2681147149141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2681147146157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1340573574578 + 1340573574579.

It is an arithmetic number, because the mean of its divisors is an integer number (1340573574579).

Almost surely, 2^{2681147149157} is an apocalyptic number.

It is an amenable number.

2681147149157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2681147149157 is an equidigital number, since it uses as much as digits as its factorization.

2681147149157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 56.

The spelling of 2681147149157 in words is "two trillion, six hundred eighty-one billion, one hundred forty-seven million, one hundred forty-nine thousand, one hundred fifty-seven".