1985126802 has 16 divisors (see below), whose sum is σ = 4179214560. Its totient is φ = 626882112.

The previous prime is 1985126791. The next prime is 1985126833. The reversal of 1985126802 is 2086215891.

It is a happy 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, 8706583 + ... + 8706810.

It is an arithmetic number, because the mean of its divisors is an integer number (261200910).

Almost surely, 2^1985126802 is an apocalyptic number.

1985126802 is an abundant number, since it is smaller than the sum of its proper divisors (2194087758).

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

1985126802 is a wasteful number, since it uses less digits than its factorization.

1985126802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17413417.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 1985126802 is about 44554.7618330521. The cubic root of 1985126802 is about 1256.7900999413.

The spelling of 1985126802 in words is "one billion, nine hundred eighty-five million, one hundred twenty-six thousand, eight hundred two".