7685370137 has 4 divisors (see below), whose sum is σ = 7697360436. Its totient is φ = 7673379840.

The previous prime is 7685370113. The next prime is 7685370163. The reversal of 7685370137 is 7310735867.

It is a happy number.

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 4705411216 + 2979958921 = 68596^2 + 54589^2 .

It is a cyclic number.

It is not a de Polignac number, because 7685370137 - 2¹² = 7685366041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7685370091 and 7685370100.

It is not an unprimeable number, because it can be changed into a prime (7685370037) 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, 5994188 + ... + 5995469.

It is an arithmetic number, because the mean of its divisors is an integer number (1924340109).

Almost surely, 2^7685370137 is an apocalyptic number.

It is an amenable number.

7685370137 is a deficient number, since it is larger than the sum of its proper divisors (11990299).

7685370137 is a wasteful number, since it uses less digits than its factorization.

7685370137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11990298.

The product of its (nonzero) digits is 740880, while the sum is 47.

The square root of 7685370137 is about 87666.2428589249. The cubic root of 7685370137 is about 1973.4294098476.

The spelling of 7685370137 in words is "seven billion, six hundred eighty-five million, three hundred seventy thousand, one hundred thirty-seven".