9420976948321 has 3 divisors (see below), whose sum is σ = 9420980017683. Its totient is φ = 9420973878960.

The previous prime is 9420976948301. The next prime is 9420976948343. The reversal of 9420976948321 is 1238496790249.

The square root of 9420976948321 is 3069361.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 9124562034721 + 296414913600 = 3020689^2 + 544440^2 .

It is not a de Polignac number, because 9420976948321 - 2⁴³ = 624883926113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9420976948301) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1534681 + ... + 4604041.

It is an arithmetic number, because the mean of its divisors is an integer number (3140326672561).

Almost surely, 2^{9420976948321} is an apocalyptic number.

9420976948321 is the 3069361-st square number.

9420976948321 is the 1534681-st centered octagonal number.

It is an amenable number.

9420976948321 is a deficient number, since it is larger than the sum of its proper divisors (3069362).

9420976948321 is an frugal number, since it uses more digits than its factorization.

9420976948321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6138722 (or 3069361 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 64.

Multiplying 9420976948321 by its sum of digits (64), we get a square (602942524692544 = 24554888²).

The spelling of 9420976948321 in words is "nine trillion, four hundred twenty billion, nine hundred seventy-six million, nine hundred forty-eight thousand, three hundred twenty-one".