654454275779 has 2 divisors, whose sum is σ = 654454275780. Its totient is φ = 654454275778.

The previous prime is 654454275757. The next prime is 654454275791. The reversal of 654454275779 is 977572454456.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-654454275779 is a prime.

It is not a weakly prime, because it can be changed into another prime (654454275479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327227137889 + 327227137890.

It is an arithmetic number, because the mean of its divisors is an integer number (327227137890).

Almost surely, 2^654454275779 is an apocalyptic number.

654454275779 is a deficient number, since it is larger than the sum of its proper divisors (1).

654454275779 is an equidigital number, since it uses as much as digits as its factorization.

654454275779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 296352000, while the sum is 65.

The spelling of 654454275779 in words is "six hundred fifty-four billion, four hundred fifty-four million, two hundred seventy-five thousand, seven hundred seventy-nine".