7081454721 has 8 divisors (see below), whose sum is σ = 10300297824. Its totient is φ = 4291790720.

The previous prime is 7081454719. The next prime is 7081454741. The reversal of 7081454721 is 1274541807.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7081454721 - 2¹ = 7081454719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7081454721.

It is not an unprimeable number, because it can be changed into a prime (7081454741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107294736 + ... + 107294801.

It is an arithmetic number, because the mean of its divisors is an integer number (1287537228).

Almost surely, 2^7081454721 is an apocalyptic number.

It is an amenable number.

7081454721 is a deficient number, since it is larger than the sum of its proper divisors (3218843103).

7081454721 is a wasteful number, since it uses less digits than its factorization.

7081454721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214589551.

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 7081454721 is about 84151.3797926095. The cubic root of 7081454721 is about 1920.3224575058.

The spelling of 7081454721 in words is "seven billion, eighty-one million, four hundred fifty-four thousand, seven hundred twenty-one".