981351308476 has 120 divisors (see below), whose sum is σ = 2190174053760. Its totient is φ = 381545791200.

The previous prime is 981351308453. The next prime is 981351308501. The reversal of 981351308476 is 674803153189.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 51861745 + ... + 51880663.

It is an arithmetic number, because the mean of its divisors is an integer number (18251450448).

Almost surely, 2^981351308476 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 981351308476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1095087026880).

981351308476 is an abundant number, since it is smaller than the sum of its proper divisors (1208822745284).

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

981351308476 is a wasteful number, since it uses less digits than its factorization.

981351308476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19453 (or 19430 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 981351308476 in words is "nine hundred eighty-one billion, three hundred fifty-one million, three hundred eight thousand, four hundred seventy-six".