7428268587 has 4 divisors (see below), whose sum is σ = 9904358120. Its totient is φ = 4952179056.

The previous prime is 7428268579. The next prime is 7428268591. The reversal of 7428268587 is 7858628247.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 7428268587 - 2³ = 7428268579 is a prime.

It is a super-2 number, since 2×7428268587² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7428268567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1238044762 + ... + 1238044767.

It is an arithmetic number, because the mean of its divisors is an integer number (2476089530).

Almost surely, 2^7428268587 is an apocalyptic number.

7428268587 is a deficient number, since it is larger than the sum of its proper divisors (2476089533).

7428268587 is a wasteful number, since it uses less digits than its factorization.

7428268587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476089532.

The product of its digits is 12042240, while the sum is 57.

The square root of 7428268587 is about 86187.4038766687. The cubic root of 7428268587 is about 1951.1733973916.

The spelling of 7428268587 in words is "seven billion, four hundred twenty-eight million, two hundred sixty-eight thousand, five hundred eighty-seven".