986941781853 has 32 divisors (see below), whose sum is σ = 1343764803072. Its totient is φ = 644146430400.

The previous prime is 986941781789. The next prime is 986941781879. The reversal of 986941781853 is 358187149689.

It is not a de Polignac number, because 986941781853 - 2⁶ = 986941781789 is a prime.

It is a super-2 number, since 2×986941781853² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (986941781653) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46962118 + ... + 46983128.

It is an arithmetic number, because the mean of its divisors is an integer number (41992650096).

Almost surely, 2^986941781853 is an apocalyptic number.

It is an amenable number.

986941781853 is a deficient number, since it is larger than the sum of its proper divisors (356823021219).

986941781853 is a wasteful number, since it uses less digits than its factorization.

986941781853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22265.

The product of its digits is 104509440, while the sum is 69.

The spelling of 986941781853 in words is "nine hundred eighty-six billion, nine hundred forty-one million, seven hundred eighty-one thousand, eight hundred fifty-three".