981476786620 has 48 divisors (see below), whose sum is σ = 2366814844800. Its totient is φ = 338116403520.

The previous prime is 981476786617. The next prime is 981476786663. The reversal of 981476786620 is 26687674189.

It is a super-2 number, since 2×981476786620² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117397350 + ... + 117405709.

It is an arithmetic number, because the mean of its divisors is an integer number (49308642600).

Almost surely, 2^981476786620 is an apocalyptic number.

It is an amenable number.

981476786620 is an abundant number, since it is smaller than the sum of its proper divisors (1385338058180).

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

981476786620 is a wasteful number, since it uses less digits than its factorization.

981476786620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234803098 (or 234803096 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 64.

The spelling of 981476786620 in words is "nine hundred eighty-one billion, four hundred seventy-six million, seven hundred eighty-six thousand, six hundred twenty".