7281114864 has 20 divisors (see below), whose sum is σ = 18809546856. Its totient is φ = 2427038272.

The previous prime is 7281114859. The next prime is 7281114889. The reversal of 7281114864 is 4684111827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75844899 + ... + 75844994.

Almost surely, 2^7281114864 is an apocalyptic number.

It is an amenable number.

7281114864 is an abundant number, since it is smaller than the sum of its proper divisors (11528431992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7281114864 is a wasteful number, since it uses less digits than its factorization.

7281114864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151689904 (or 151689898 counting only the distinct ones).

The product of its digits is 86016, while the sum is 42.

The square root of 7281114864 is about 85329.4489845094. The cubic root of 7281114864 is about 1938.2031458227.

The spelling of 7281114864 in words is "seven billion, two hundred eighty-one million, one hundred fourteen thousand, eight hundred sixty-four".