985768867590 has 64 divisors (see below), whose sum is σ = 2572569732096. Its totient is φ = 240294955392.

The previous prime is 985768867579. The next prime is 985768867607. The reversal of 985768867590 is 95768867589.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 12229794 + ... + 12310133.

It is an arithmetic number, because the mean of its divisors is an integer number (40196402064).

Almost surely, 2^985768867590 is an apocalyptic number.

985768867590 is an abundant number, since it is smaller than the sum of its proper divisors (1586800864506).

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

985768867590 is a wasteful number, since it uses less digits than its factorization.

985768867590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24540053.

The product of its (nonzero) digits is 1828915200, while the sum is 78.

The spelling of 985768867590 in words is "nine hundred eighty-five billion, seven hundred sixty-eight million, eight hundred sixty-seven thousand, five hundred ninety".