6965138377 has 4 divisors (see below), whose sum is σ = 6971547136. Its totient is φ = 6958729620.

The previous prime is 6965138347. The next prime is 6965138381. The reversal of 6965138377 is 7738315696.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6965138377 - 2²³ = 6956749769 is a prime.

It is a super-2 number, since 2×6965138377² = 97026305221516388258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6965138317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3202749 + ... + 3204922.

It is an arithmetic number, because the mean of its divisors is an integer number (1742886784).

Almost surely, 2^6965138377 is an apocalyptic number.

It is an amenable number.

6965138377 is a deficient number, since it is larger than the sum of its proper divisors (6408759).

6965138377 is a wasteful number, since it uses less digits than its factorization.

6965138377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6408758.

The product of its digits is 5715360, while the sum is 55.

The square root of 6965138377 is about 83457.4045666411. The cubic root of 6965138377 is about 1909.7502827682.

The spelling of 6965138377 in words is "six billion, nine hundred sixty-five million, one hundred thirty-eight thousand, three hundred seventy-seven".