7464455447721 has 4 divisors (see below), whose sum is σ = 9952607263632. Its totient is φ = 4976303631812.

The previous prime is 7464455447693. The next prime is 7464455447759. The reversal of 7464455447721 is 1277445544647.

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 7464455447721 - 2¹⁴ = 7464455431337 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7464455447221) 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, 1244075907951 + ... + 1244075907956.

It is an arithmetic number, because the mean of its divisors is an integer number (2488151815908).

Almost surely, 2^{7464455447721} is an apocalyptic number.

It is an amenable number.

7464455447721 is a deficient number, since it is larger than the sum of its proper divisors (2488151815911).

7464455447721 is a wasteful number, since it uses less digits than its factorization.

7464455447721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2488151815910.

The product of its digits is 105369600, while the sum is 60.

The spelling of 7464455447721 in words is "seven trillion, four hundred sixty-four billion, four hundred fifty-five million, four hundred forty-seven thousand, seven hundred twenty-one".