7807669420 has 96 divisors (see below), whose sum is σ = 17374694400. Its totient is φ = 2942688000.

The previous prime is 7807669417. The next prime is 7807669423. The reversal of 7807669420 is 249667087.

It is an interprime number because it is at equal distance from previous prime (7807669417) and next prime (7807669423).

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (7807669423) 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, 5166465 + ... + 5167975.

It is an arithmetic number, because the mean of its divisors is an integer number (180986400).

Almost surely, 2^7807669420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7807669420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8687347200).

7807669420 is an abundant number, since it is smaller than the sum of its proper divisors (9567024980).

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

7807669420 is a wasteful number, since it uses less digits than its factorization.

7807669420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759 (or 1757 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 49.

The square root of 7807669420 is about 88361.0175360153. The cubic root of 7807669420 is about 1983.8422670273.

The spelling of 7807669420 in words is "seven billion, eight hundred seven million, six hundred sixty-nine thousand, four hundred twenty".