7806137242 has 8 divisors (see below), whose sum is σ = 11816630100. Its totient is φ = 3867260544.

The previous prime is 7806137219. The next prime is 7806137291. The reversal of 7806137242 is 2427316087.

It can be written as a sum of positive squares in 2 ways, for example, as 7306659441 + 499477801 = 85479^2 + 22349^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 7806137195 and 7806137204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17903767 + ... + 17904202.

Almost surely, 2^7806137242 is an apocalyptic number.

7806137242 is a deficient number, since it is larger than the sum of its proper divisors (4010492858).

7806137242 is a wasteful number, since it uses less digits than its factorization.

7806137242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35808080.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 7806137242 is about 88352.3471221903. The cubic root of 7806137242 is about 1983.7124887215.

The spelling of 7806137242 in words is "seven billion, eight hundred six million, one hundred thirty-seven thousand, two hundred forty-two".