154776676427 has 2 divisors, whose sum is σ = 154776676428. Its totient is φ = 154776676426.

The previous prime is 154776676387. The next prime is 154776676447. The reversal of 154776676427 is 724676677451.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-154776676427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 154776676427.

It is not a weakly prime, because it can be changed into another prime (154776676447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77388338213 + 77388338214.

It is an arithmetic number, because the mean of its divisors is an integer number (77388338214).

Almost surely, 2^154776676427 is an apocalyptic number.

154776676427 is a deficient number, since it is larger than the sum of its proper divisors (1).

154776676427 is an equidigital number, since it uses as much as digits as its factorization.

154776676427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82978560, while the sum is 62.

The spelling of 154776676427 in words is "one hundred fifty-four billion, seven hundred seventy-six million, six hundred seventy-six thousand, four hundred twenty-seven".