984294157456 has 45 divisors (see below), whose sum is σ = 1927687016619. Its totient is φ = 486882911232.

The previous prime is 984294157433. The next prime is 984294157507. The reversal of 984294157456 is 654751492489.

The square root of 984294157456 is 992116.

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

It can be written as a sum of positive squares in 4 ways, for example, as 14620679056 + 969673478400 = 120916^2 + 984720^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 384939730 + ... + 384942286.

Almost surely, 2^984294157456 is an apocalyptic number.

984294157456 is the 992116-th square number.

It is an amenable number.

984294157456 is a deficient number, since it is larger than the sum of its proper divisors (943392859163).

984294157456 is an frugal number, since it uses more digits than its factorization.

984294157456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5316 (or 2656 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 64.

Multiplying 984294157456 by its sum of digits (64), we get a square (62994826077184 = 7936928²).

The spelling of 984294157456 in words is "nine hundred eighty-four billion, two hundred ninety-four million, one hundred fifty-seven thousand, four hundred fifty-six".