90791634727 has 2 divisors, whose sum is σ = 90791634728. Its totient is φ = 90791634726.

The previous prime is 90791634709. The next prime is 90791634751. The reversal of 90791634727 is 72743619709.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90791634727 - 2⁷ = 90791634599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90791634127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45395817363 + 45395817364.

It is an arithmetic number, because the mean of its divisors is an integer number (45395817364).

Almost surely, 2^90791634727 is an apocalyptic number.

90791634727 is a deficient number, since it is larger than the sum of its proper divisors (1).

90791634727 is an equidigital number, since it uses as much as digits as its factorization.

90791634727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4000752, while the sum is 55.

The spelling of 90791634727 in words is "ninety billion, seven hundred ninety-one million, six hundred thirty-four thousand, seven hundred twenty-seven".