7138495685 has 8 divisors (see below), whose sum is σ = 8586072576. Its totient is φ = 5697544720.

The previous prime is 7138495669. The next prime is 7138495709. The reversal of 7138495685 is 5865948317.

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

It is not a de Polignac number, because 7138495685 - 2⁴ = 7138495669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7138495685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1654109 + ... + 1658418.

It is an arithmetic number, because the mean of its divisors is an integer number (1073259072).

Almost surely, 2^7138495685 is an apocalyptic number.

It is an amenable number.

7138495685 is a deficient number, since it is larger than the sum of its proper divisors (1447576891).

7138495685 is a wasteful number, since it uses less digits than its factorization.

7138495685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3312963.

The product of its digits is 7257600, while the sum is 56.

The square root of 7138495685 is about 84489.6188001816. The cubic root of 7138495685 is about 1925.4647270627.

The spelling of 7138495685 in words is "seven billion, one hundred thirty-eight million, four hundred ninety-five thousand, six hundred eighty-five".