7427164899 has 128 divisors (see below), whose sum is σ = 13237862400. Its totient is φ = 3590737920.

The previous prime is 7427164889. The next prime is 7427164903. The reversal of 7427164899 is 9984617247.

It is a happy number.

It is not a de Polignac number, because 7427164899 - 2⁹ = 7427164387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7427164889) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 53432772 + ... + 53432910.

It is an arithmetic number, because the mean of its divisors is an integer number (103420800).

Almost surely, 2^7427164899 is an apocalyptic number.

7427164899 is a deficient number, since it is larger than the sum of its proper divisors (5810697501).

7427164899 is a wasteful number, since it uses less digits than its factorization.

7427164899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385.

The product of its digits is 6096384, while the sum is 57.

The square root of 7427164899 is about 86181.0008006405. Note that the first 3 decimals coincide. The cubic root of 7427164899 is about 1951.0767578539.

The spelling of 7427164899 in words is "seven billion, four hundred twenty-seven million, one hundred sixty-four thousand, eight hundred ninety-nine".