90940179329 has 2 divisors, whose sum is σ = 90940179330. Its totient is φ = 90940179328.

The previous prime is 90940179307. The next prime is 90940179377. The reversal of 90940179329 is 92397104909.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81613062400 + 9327116929 = 285680^2 + 96577^2 .

It is a cyclic number.

It is not a de Polignac number, because 90940179329 - 2⁸ = 90940179073 is a prime.

It is not a weakly prime, because it can be changed into another prime (90940172329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45470089664 + 45470089665.

It is an arithmetic number, because the mean of its divisors is an integer number (45470089665).

Almost surely, 2^90940179329 is an apocalyptic number.

It is an amenable number.

90940179329 is a deficient number, since it is larger than the sum of its proper divisors (1).

90940179329 is an equidigital number, since it uses as much as digits as its factorization.

90940179329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1102248, while the sum is 53.

The spelling of 90940179329 in words is "ninety billion, nine hundred forty million, one hundred seventy-nine thousand, three hundred twenty-nine".