6939397552 has 40 divisors (see below), whose sum is σ = 14270180400. Its totient is φ = 3257751552.

The previous prime is 6939397547. The next prime is 6939397561. The reversal of 6939397552 is 2557939396.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 83524 + ... + 144412.

It is an arithmetic number, because the mean of its divisors is an integer number (356754510).

Almost surely, 2^6939397552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6939397552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7135090200).

6939397552 is an abundant number, since it is smaller than the sum of its proper divisors (7330782848).

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

6939397552 is a wasteful number, since it uses less digits than its factorization.

6939397552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61333 (or 61327 counting only the distinct ones).

The product of its digits is 13778100, while the sum is 58.

The square root of 6939397552 is about 83303.0464749039. The cubic root of 6939397552 is about 1907.3947789406.

The spelling of 6939397552 in words is "six billion, nine hundred thirty-nine million, three hundred ninety-seven thousand, five hundred fifty-two".