9464025456721 has 4 divisors (see below), whose sum is σ = 10324391407344. Its totient is φ = 8603659506100.

The previous prime is 9464025456707. The next prime is 9464025456733. The reversal of 9464025456721 is 1276545204649.

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.

It is a cyclic number.

It is not a de Polignac number, because 9464025456721 - 2⁷ = 9464025456593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9464025456761) 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, 430182975295 + ... + 430182975316.

It is an arithmetic number, because the mean of its divisors is an integer number (2581097851836).

Almost surely, 2^{9464025456721} is an apocalyptic number.

It is an amenable number.

9464025456721 is a deficient number, since it is larger than the sum of its proper divisors (860365950623).

9464025456721 is a wasteful number, since it uses less digits than its factorization.

9464025456721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860365950622.

The product of its (nonzero) digits is 14515200, while the sum is 55.

The spelling of 9464025456721 in words is "nine trillion, four hundred sixty-four billion, twenty-five million, four hundred fifty-six thousand, seven hundred twenty-one".