654025652491 has 2 divisors, whose sum is σ = 654025652492. Its totient is φ = 654025652490.

The previous prime is 654025652461. The next prime is 654025652617. The reversal of 654025652491 is 194256520456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 654025652491 - 2⁷ = 654025652363 is a prime.

It is not a weakly prime, because it can be changed into another prime (654025652461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327012826245 + 327012826246.

It is an arithmetic number, because the mean of its divisors is an integer number (327012826246).

Almost surely, 2^654025652491 is an apocalyptic number.

654025652491 is a deficient number, since it is larger than the sum of its proper divisors (1).

654025652491 is an equidigital number, since it uses as much as digits as its factorization.

654025652491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592000, while the sum is 49.

The spelling of 654025652491 in words is "six hundred fifty-four billion, twenty-five million, six hundred fifty-two thousand, four hundred ninety-one".