135777876251 has 2 divisors, whose sum is σ = 135777876252. Its totient is φ = 135777876250.

The previous prime is 135777876233. The next prime is 135777876263. The reversal of 135777876251 is 152678777531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135777876251 - 2⁶ = 135777876187 is a prime.

It is not a weakly prime, because it can be changed into another prime (135777876271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67888938125 + 67888938126.

It is an arithmetic number, because the mean of its divisors is an integer number (67888938126).

Almost surely, 2^135777876251 is an apocalyptic number.

135777876251 is a deficient number, since it is larger than the sum of its proper divisors (1).

135777876251 is an equidigital number, since it uses as much as digits as its factorization.

135777876251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17287200, while the sum is 59.

The spelling of 135777876251 in words is "one hundred thirty-five billion, seven hundred seventy-seven million, eight hundred seventy-six thousand, two hundred fifty-one".