278000050051 has 2 divisors, whose sum is σ = 278000050052. Its totient is φ = 278000050050.

The previous prime is 278000049983. The next prime is 278000050061. The reversal of 278000050051 is 150050000872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 278000050051 - 2⁹ = 278000049539 is a prime.

It is not a weakly prime, because it can be changed into another prime (278000050061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139000025025 + 139000025026.

It is an arithmetic number, because the mean of its divisors is an integer number (139000025026).

Almost surely, 2^278000050051 is an apocalyptic number.

278000050051 is a deficient number, since it is larger than the sum of its proper divisors (1).

278000050051 is an equidigital number, since it uses as much as digits as its factorization.

278000050051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2800, while the sum is 28.

The spelling of 278000050051 in words is "two hundred seventy-eight billion, fifty thousand, fifty-one".