2877142391 has 2 divisors, whose sum is σ = 2877142392. Its totient is φ = 2877142390.

The previous prime is 2877142319. The next prime is 2877142397. The reversal of 2877142391 is 1932417782.

Together with previous prime (2877142319) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2877142391 - 2¹⁸ = 2876880247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2877142397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1438571195 + 1438571196.

It is an arithmetic number, because the mean of its divisors is an integer number (1438571196).

Almost surely, 2^2877142391 is an apocalyptic number.

2877142391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2877142391 is an equidigital number, since it uses as much as digits as its factorization.

2877142391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 44.

The square root of 2877142391 is about 53639.0006525103. Note that the first 3 decimals coincide. The cubic root of 2877142391 is about 1422.2866007820.

The spelling of 2877142391 in words is "two billion, eight hundred seventy-seven million, one hundred forty-two thousand, three hundred ninety-one".