972067648281 has 4 divisors (see below), whose sum is σ = 1296090197712. Its totient is φ = 648045098852.

The previous prime is 972067648247. The next prime is 972067648301. The reversal of 972067648281 is 182846760279.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 182846760279 = 3 ⋅60948920093.

It is a cyclic number.

It is not a de Polignac number, because 972067648281 - 2³⁰ = 970993906457 is a prime.

It is a super-2 number, since 2×972067648281² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (972067648381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162011274711 + ... + 162011274716.

It is an arithmetic number, because the mean of its divisors is an integer number (324022549428).

Almost surely, 2^972067648281 is an apocalyptic number.

It is an amenable number.

972067648281 is a deficient number, since it is larger than the sum of its proper divisors (324022549431).

972067648281 is a wasteful number, since it uses less digits than its factorization.

972067648281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324022549430.

The product of its (nonzero) digits is 16257024, while the sum is 60.

The spelling of 972067648281 in words is "nine hundred seventy-two billion, sixty-seven million, six hundred forty-eight thousand, two hundred eighty-one".