7616864281 has 8 divisors (see below), whose sum is σ = 8214356360. Its totient is φ = 7021026432.

The previous prime is 7616864279. The next prime is 7616864291. The reversal of 7616864281 is 1824686167.

It can be written as a sum of positive squares in 4 ways, for example, as 6046681 + 7610817600 = 2459^2 + 87240^2 .

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 7616864281 - 2¹ = 7616864279 is a prime.

It is a super-2 number, since 2×7616864281² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7616864201) 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, 403980 + ... + 422413.

It is an arithmetic number, because the mean of its divisors is an integer number (1026794545).

Almost surely, 2^7616864281 is an apocalyptic number.

It is an amenable number.

7616864281 is a deficient number, since it is larger than the sum of its proper divisors (597492079).

7616864281 is a wasteful number, since it uses less digits than its factorization.

7616864281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827115.

The product of its digits is 774144, while the sum is 49.

The square root of 7616864281 is about 87274.6485584445. The cubic root of 7616864281 is about 1967.5483154390.

The spelling of 7616864281 in words is "seven billion, six hundred sixteen million, eight hundred sixty-four thousand, two hundred eighty-one".