83090459921 has 16 divisors (see below), whose sum is σ = 101541962880. Its totient is φ = 66367276800.

The previous prime is 83090459909. The next prime is 83090459923. The reversal of 83090459921 is 12995409038.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83090459921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83090459921.

It is not an unprimeable number, because it can be changed into a prime (83090459923) 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 in 15 ways as a sum of consecutive naturals, for example, 3444611 + ... + 3468648.

It is an arithmetic number, because the mean of its divisors is an integer number (6346372680).

Almost surely, 2^83090459921 is an apocalyptic number.

It is an amenable number.

83090459921 is a deficient number, since it is larger than the sum of its proper divisors (18451502959).

83090459921 is a wasteful number, since it uses less digits than its factorization.

83090459921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6913384.

The product of its (nonzero) digits is 699840, while the sum is 50.

The spelling of 83090459921 in words is "eighty-three billion, ninety million, four hundred fifty-nine thousand, nine hundred twenty-one".