7840027899 has 36 divisors (see below), whose sum is σ = 12471498312. Its totient is φ = 4745658720.

The previous prime is 7840027891. The next prime is 7840027903. The reversal of 7840027899 is 9987200487.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is not a de Polignac number, because 7840027899 - 2³ = 7840027891 is a prime.

It is a super-2 number, since 2×7840027899² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7840027891) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9690607 + ... + 9691415.

Almost surely, 2^7840027899 is an apocalyptic number.

7840027899 is a deficient number, since it is larger than the sum of its proper divisors (4631470413).

7840027899 is an frugal number, since it uses more digits than its factorization.

7840027899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The square root of 7840027899 is about 88543.9320281181. The cubic root of 7840027899 is about 1986.5791331973.

The spelling of 7840027899 in words is "seven billion, eight hundred forty million, twenty-seven thousand, eight hundred ninety-nine".