7689920919 has 8 divisors (see below), whose sum is σ = 10263791232. Its totient is φ = 5121332280.

The previous prime is 7689920911. The next prime is 7689920929. The reversal of 7689920919 is 9190299867.

It is a happy number.

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

It is not a de Polignac number, because 7689920919 - 2³ = 7689920911 is a prime.

It is a super-2 number, since 2×7689920919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7689920911) 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, 1317019 + ... + 1322844.

It is an arithmetic number, because the mean of its divisors is an integer number (1282973904).

Almost surely, 2^7689920919 is an apocalyptic number.

7689920919 is a deficient number, since it is larger than the sum of its proper divisors (2573870313).

7689920919 is a wasteful number, since it uses less digits than its factorization.

7689920919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2640837.

The product of its (nonzero) digits is 4408992, while the sum is 60.

The square root of 7689920919 is about 87692.1941737119. The cubic root of 7689920919 is about 1973.8188456575.

The spelling of 7689920919 in words is "seven billion, six hundred eighty-nine million, nine hundred twenty thousand, nine hundred nineteen".