7816013817 has 8 divisors (see below), whose sum is σ = 10426227840. Its totient is φ = 5208237840.

The previous prime is 7816013783. The next prime is 7816013819. The reversal of 7816013817 is 7183106187.

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

It is not a de Polignac number, because 7816013817 - 2²³ = 7807625209 is a prime.

It is a super-2 number, since 2×7816013817² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7816013819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602017 + ... + 614862.

It is an arithmetic number, because the mean of its divisors is an integer number (1303278480).

Almost surely, 2^7816013817 is an apocalyptic number.

It is an amenable number.

7816013817 is a deficient number, since it is larger than the sum of its proper divisors (2610214023).

7816013817 is a wasteful number, since it uses less digits than its factorization.

7816013817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219023.

The product of its (nonzero) digits is 56448, while the sum is 42.

The square root of 7816013817 is about 88408.2225644199. Note that the first 3 decimals coincide. The cubic root of 7816013817 is about 1984.5487550011.

The spelling of 7816013817 in words is "seven billion, eight hundred sixteen million, thirteen thousand, eight hundred seventeen".