7138495272 has 16 divisors (see below), whose sum is σ = 17846238240. Its totient is φ = 2379498416.

The previous prime is 7138495267. The next prime is 7138495289. The reversal of 7138495272 is 2725948317.

It is a happy number.

It is a super-2 number, since 2×7138495272² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148718628 + ... + 148718675.

It is an arithmetic number, because the mean of its divisors is an integer number (1115389890).

Almost surely, 2^7138495272 is an apocalyptic number.

It is an amenable number.

7138495272 is an abundant number, since it is smaller than the sum of its proper divisors (10707742968).

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

7138495272 is a wasteful number, since it uses less digits than its factorization.

7138495272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297437312 (or 297437308 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 7138495272 is about 84489.6163560943. The cubic root of 7138495272 is about 1925.4646899300.

The spelling of 7138495272 in words is "seven billion, one hundred thirty-eight million, four hundred ninety-five thousand, two hundred seventy-two".