90612245784 has 32 divisors (see below), whose sum is σ = 230370120000. Its totient is φ = 29692147872.

The previous prime is 90612245767. The next prime is 90612245791. The reversal of 90612245784 is 48754221609.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31994434 + ... + 31997265.

It is an arithmetic number, because the mean of its divisors is an integer number (7199066250).

Almost surely, 2^90612245784 is an apocalyptic number.

It is an amenable number.

90612245784 is an abundant number, since it is smaller than the sum of its proper divisors (139757874216).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90612245784 is a wasteful number, since it uses less digits than its factorization.

90612245784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63991767 (or 63991763 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 90612245784 in words is "ninety billion, six hundred twelve million, two hundred forty-five thousand, seven hundred eighty-four".