981746512 has 40 divisors (see below), whose sum is σ = 1970577000. Its totient is φ = 473260032.

The previous prime is 981746429. The next prime is 981746569. The reversal of 981746512 is 215647189.

It can be written as a sum of positive squares in 4 ways, for example, as 538054416 + 443692096 = 23196^2 + 21064^2 .

It is a super-2 number, since 2×981746512² = 1927652427648332288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485728 + ... + 487744.

It is an arithmetic number, because the mean of its divisors is an integer number (49264425).

Almost surely, 2^981746512 is an apocalyptic number.

It is an amenable number.

981746512 is an abundant number, since it is smaller than the sum of its proper divisors (988830488).

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

981746512 is a wasteful number, since it uses less digits than its factorization.

981746512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3103 (or 3097 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The square root of 981746512 is about 31332.8344073753. The cubic root of 981746512 is about 993.8781028534.

The spelling of 981746512 in words is "nine hundred eighty-one million, seven hundred forty-six thousand, five hundred twelve".