90693608419 has 16 divisors (see below), whose sum is σ = 92581768800. Its totient is φ = 88835080800.

The previous prime is 90693608407. The next prime is 90693608429. The reversal of 90693608419 is 91480639609.

It is not a de Polignac number, because 90693608419 - 2¹³ = 90693600227 is a prime.

It is a super-2 number, since 2×90693608419² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 90693608419.

It is not an unprimeable number, because it can be changed into a prime (90693608429) 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 in 15 ways as a sum of consecutive naturals, for example, 123728977 + ... + 123729709.

It is an arithmetic number, because the mean of its divisors is an integer number (5786360550).

Almost surely, 2^90693608419 is an apocalyptic number.

90693608419 is a deficient number, since it is larger than the sum of its proper divisors (1888160381).

90693608419 is an frugal number, since it uses more digits than its factorization.

90693608419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155 (or 941 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 55.

The spelling of 90693608419 in words is "ninety billion, six hundred ninety-three million, six hundred eight thousand, four hundred nineteen".