990574308340064 has 48 divisors (see below), whose sum is σ = 2283152979000096. Its totient is φ = 414177411148800.

The previous prime is 990574308340039. The next prime is 990574308340073. The reversal of 990574308340064 is 460043803475099.

It is a junction number, because it is equal to n+sod(n) for n = 990574308339979 and 990574308340006.

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, 53929341227 + ... + 53929359594.

It is an arithmetic number, because the mean of its divisors is an integer number (47565687062502).

Almost surely, 2^{990574308340064} is an apocalyptic number.

It is an amenable number.

990574308340064 is an abundant number, since it is smaller than the sum of its proper divisors (1292578670660032).

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

990574308340064 is a wasteful number, since it uses less digits than its factorization.

990574308340064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107858700879 (or 107858700871 counting only the distinct ones).

The product of its (nonzero) digits is 78382080, while the sum is 62.

The spelling of 990574308340064 in words is "nine hundred ninety trillion, five hundred seventy-four billion, three hundred eight million, three hundred forty thousand, sixty-four".