90498910064 has 20 divisors (see below), whose sum is σ = 175430300760. Its totient is φ = 45226574400.

The previous prime is 90498910039. The next prime is 90498910069. The reversal of 90498910064 is 46001989409.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 90498909994 and 90498910021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90498910069) 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 3 ways as a sum of consecutive naturals, for example, 1397387 + ... + 1460714.

It is an arithmetic number, because the mean of its divisors is an integer number (8771515038).

Almost surely, 2^90498910064 is an apocalyptic number.

It is an amenable number.

90498910064 is a deficient number, since it is larger than the sum of its proper divisors (84931390696).

90498910064 is a wasteful number, since it uses less digits than its factorization.

90498910064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860088 (or 2860082 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 50.

The spelling of 90498910064 in words is "ninety billion, four hundred ninety-eight million, nine hundred ten thousand, sixty-four".