976281121648 has 80 divisors (see below), whose sum is σ = 2237583007744. Its totient is φ = 403805399040.

The previous prime is 976281121637. The next prime is 976281121649. The reversal of 976281121648 is 846121182679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (976281121649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891136 + ... + 1657312.

Almost surely, 2^976281121648 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 976281121648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1118791503872).

976281121648 is an abundant number, since it is smaller than the sum of its proper divisors (1261301886096).

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

976281121648 is a wasteful number, since it uses less digits than its factorization.

976281121648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766590 (or 766584 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 55.

The spelling of 976281121648 in words is "nine hundred seventy-six billion, two hundred eighty-one million, one hundred twenty-one thousand, six hundred forty-eight".