6939520077 has 8 divisors (see below), whose sum is σ = 10574506816. Its totient is φ = 3965440032.

The previous prime is 6939520051. The next prime is 6939520103. The reversal of 6939520077 is 7700259396.

It is an interprime number because it is at equal distance from previous prime (6939520051) and next prime (6939520103).

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

It is not a de Polignac number, because 6939520077 - 2⁶ = 6939520013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6939520177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165226648 + ... + 165226689.

It is an arithmetic number, because the mean of its divisors is an integer number (1321813352).

Almost surely, 2^6939520077 is an apocalyptic number.

It is an amenable number.

6939520077 is a deficient number, since it is larger than the sum of its proper divisors (3634986739).

6939520077 is a wasteful number, since it uses less digits than its factorization.

6939520077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330453347.

The product of its (nonzero) digits is 714420, while the sum is 48.

The square root of 6939520077 is about 83303.7818889395. The cubic root of 6939520077 is about 1907.4060048031.

The spelling of 6939520077 in words is "six billion, nine hundred thirty-nine million, five hundred twenty thousand, seventy-seven".