90634230913 has 2 divisors, whose sum is σ = 90634230914. Its totient is φ = 90634230912.

The previous prime is 90634230887. The next prime is 90634230917. The reversal of 90634230913 is 31903243609.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74883227904 + 15751003009 = 273648^2 + 125503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90634230913 is a prime.

It is not a weakly prime, because it can be changed into another prime (90634230917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45317115456 + 45317115457.

It is an arithmetic number, because the mean of its divisors is an integer number (45317115457).

Almost surely, 2^90634230913 is an apocalyptic number.

It is an amenable number.

90634230913 is a deficient number, since it is larger than the sum of its proper divisors (1).

90634230913 is an equidigital number, since it uses as much as digits as its factorization.

90634230913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 40.

The spelling of 90634230913 in words is "ninety billion, six hundred thirty-four million, two hundred thirty thousand, nine hundred thirteen".