2678937431 has 2 divisors, whose sum is σ = 2678937432. Its totient is φ = 2678937430.

The previous prime is 2678937413. The next prime is 2678937439. The reversal of 2678937431 is 1347398762.

Together with previous prime (2678937413) 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 a de Polignac number, because none of the positive numbers 2^k-2678937431 is a prime.

It is a super-2 number, since 2×2678937431² = 14353411518425759522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2678937431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2678937439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1339468715 + 1339468716.

It is an arithmetic number, because the mean of its divisors is an integer number (1339468716).

Almost surely, 2^2678937431 is an apocalyptic number.

2678937431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2678937431 is an equidigital number, since it uses as much as digits as its factorization.

2678937431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 50.

The square root of 2678937431 is about 51758.4527492853. The cubic root of 2678937431 is about 1388.8463126976.

The spelling of 2678937431 in words is "two billion, six hundred seventy-eight million, nine hundred thirty-seven thousand, four hundred thirty-one".