6940688052 has 12 divisors (see below), whose sum is σ = 16194938816. Its totient is φ = 2313562680.

The previous prime is 6940688009. The next prime is 6940688057. The reversal of 6940688052 is 2508860496.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 6940687992 and 6940688010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6940688057) 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, 289195324 + ... + 289195347.

Almost surely, 2^6940688052 is an apocalyptic number.

It is an amenable number.

6940688052 is an abundant number, since it is smaller than the sum of its proper divisors (9254250764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6940688052 is a wasteful number, since it uses less digits than its factorization.

6940688052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578390678 (or 578390676 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The square root of 6940688052 is about 83310.7919299775. The cubic root of 6940688052 is about 1907.5130092035.

The spelling of 6940688052 in words is "six billion, nine hundred forty million, six hundred eighty-eight thousand, fifty-two".