7816736620 has 96 divisors (see below), whose sum is σ = 20653839360. Its totient is φ = 2413981440.

The previous prime is 7816736617. The next prime is 7816736623. The reversal of 7816736620 is 266376187.

It is an interprime number because it is at equal distance from previous prime (7816736617) and next prime (7816736623).

It is a super-2 number, since 2×7816736620² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7816736623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144577 + ... + 191143.

It is an arithmetic number, because the mean of its divisors is an integer number (215144160).

Almost surely, 2^7816736620 is an apocalyptic number.

7816736620 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7816736620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10326919680).

7816736620 is an abundant number, since it is smaller than the sum of its proper divisors (12837102740).

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

7816736620 is a wasteful number, since it uses less digits than its factorization.

7816736620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46703 (or 46701 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 46.

The square root of 7816736620 is about 88412.3103419428. The cubic root of 7816736620 is about 1984.6099282800.

The spelling of 7816736620 in words is "seven billion, eight hundred sixteen million, seven hundred thirty-six thousand, six hundred twenty".