7790147137 has 4 divisors (see below), whose sum is σ = 7815036100. Its totient is φ = 7765258176.

The previous prime is 7790147119. The next prime is 7790147161. The reversal of 7790147137 is 7317410977.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2808046081 + 4982101056 = 52991^2 + 70584^2 .

It is a cyclic number.

It is not a de Polignac number, because 7790147137 - 2¹⁹ = 7789622849 is a prime.

It is a super-2 number, since 2×7790147137² (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 (7790147437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12444012 + ... + 12444637.

It is an arithmetic number, because the mean of its divisors is an integer number (1953759025).

Almost surely, 2^7790147137 is an apocalyptic number.

It is an amenable number.

7790147137 is a deficient number, since it is larger than the sum of its proper divisors (24888963).

7790147137 is a wasteful number, since it uses less digits than its factorization.

7790147137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24888962.

The product of its (nonzero) digits is 259308, while the sum is 46.

The square root of 7790147137 is about 88261.8101842467. The cubic root of 7790147137 is about 1982.3570827993.

The spelling of 7790147137 in words is "seven billion, seven hundred ninety million, one hundred forty-seven thousand, one hundred thirty-seven".