6930731644 has 6 divisors (see below), whose sum is σ = 12128780384. Its totient is φ = 3465365820.

The previous prime is 6930731641. The next prime is 6930731693. The reversal of 6930731644 is 4461370396.

It is a super-2 number, since 2×6930731644² = 96070082242285885472, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6930731644.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6930731641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 866341452 + ... + 866341459.

Almost surely, 2^6930731644 is an apocalyptic number.

It is an amenable number.

6930731644 is a deficient number, since it is larger than the sum of its proper divisors (5198048740).

6930731644 is a wasteful number, since it uses less digits than its factorization.

6930731644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1732682915 (or 1732682913 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 43.

The square root of 6930731644 is about 83251.0158736817. The cubic root of 6930731644 is about 1906.6004644045.

The spelling of 6930731644 in words is "six billion, nine hundred thirty million, seven hundred thirty-one thousand, six hundred forty-four".