90259474651 has 2 divisors, whose sum is σ = 90259474652. Its totient is φ = 90259474650.

The previous prime is 90259474639. The next prime is 90259474699. The reversal of 90259474651 is 15647495209.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90259474651 - 2⁷ = 90259474523 is a prime.

It is not a weakly prime, because it can be changed into another prime (90253474651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45129737325 + 45129737326.

It is an arithmetic number, because the mean of its divisors is an integer number (45129737326).

Almost surely, 2^90259474651 is an apocalyptic number.

90259474651 is a deficient number, since it is larger than the sum of its proper divisors (1).

90259474651 is an equidigital number, since it uses as much as digits as its factorization.

90259474651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 90259474651 in words is "ninety billion, two hundred fifty-nine million, four hundred seventy-four thousand, six hundred fifty-one".