6927479664 has 240 divisors, whose sum is σ = 22011448320. Its totient is φ = 1868106240.

The previous prime is 6927479653. The next prime is 6927479677. The reversal of 6927479664 is 4669747296.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 6927479598 and 6927479607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4272774 + ... + 4274394.

It is an arithmetic number, because the mean of its divisors is an integer number (91714368).

Almost surely, 2^6927479664 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 6927479664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11005724160).

6927479664 is an abundant number, since it is smaller than the sum of its proper divisors (15083968656).

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

6927479664 is a wasteful number, since it uses less digits than its factorization.

6927479664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748 (or 1735 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 60.

The square root of 6927479664 is about 83231.4824090019. The cubic root of 6927479664 is about 1906.3022180389.

It can be divided in two parts, 6927 and 479664, that added together give a triangular number (486591 = T₉₈₆).

The spelling of 6927479664 in words is "six billion, nine hundred twenty-seven million, four hundred seventy-nine thousand, six hundred sixty-four".