978492899344 has 45 divisors (see below), whose sum is σ = 1925069848191. Its totient is φ = 481813691040.

The previous prime is 978492899341. The next prime is 978492899347. The reversal of 978492899344 is 443998294879.

The square root of 978492899344 is 989188.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (978492899341) and next prime (978492899347).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (978492899341) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 265100539 + ... + 265104229.

Almost surely, 2^978492899344 is an apocalyptic number.

978492899344 is the 989188-th square number.

It is an amenable number.

978492899344 is a deficient number, since it is larger than the sum of its proper divisors (946576948847).

978492899344 is an frugal number, since it uses more digits than its factorization.

978492899344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7524 (or 3760 counting only the distinct ones).

The product of its digits is 1128701952, while the sum is 76.

The spelling of 978492899344 in words is "nine hundred seventy-eight billion, four hundred ninety-two million, eight hundred ninety-nine thousand, three hundred forty-four".