90817924699474 has 8 divisors (see below), whose sum is σ = 155687870913408. Its totient is φ = 38921967728340.

The previous prime is 90817924699421. The next prime is 90817924699529. The reversal of 90817924699474 is 47499642971809.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 90817924699394 and 90817924699403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3243497310682 + ... + 3243497310709.

It is an arithmetic number, because the mean of its divisors is an integer number (19460983864176).

Almost surely, 2^{90817924699474} is an apocalyptic number.

90817924699474 is a deficient number, since it is larger than the sum of its proper divisors (64869946213934).

90817924699474 is a wasteful number, since it uses less digits than its factorization.

90817924699474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6486994621400.

The product of its (nonzero) digits is 1975228416, while the sum is 79.

The spelling of 90817924699474 in words is "ninety trillion, eight hundred seventeen billion, nine hundred twenty-four million, six hundred ninety-nine thousand, four hundred seventy-four".