7742432660 has 12 divisors (see below), whose sum is σ = 16259108628. Its totient is φ = 3096973056.

The previous prime is 7742432617. The next prime is 7742432693. The reversal of 7742432660 is 662342477.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 857084176 + 6885348484 = 29276^2 + 82978^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 193560797 + ... + 193560836.

It is an arithmetic number, because the mean of its divisors is an integer number (1354925719).

Almost surely, 2^7742432660 is an apocalyptic number.

It is an amenable number.

7742432660 is an abundant number, since it is smaller than the sum of its proper divisors (8516675968).

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

7742432660 is a wasteful number, since it uses less digits than its factorization.

7742432660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387121642 (or 387121640 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 41.

The square root of 7742432660 is about 87991.0942084482. The cubic root of 7742432660 is about 1978.3014937638.

The spelling of 7742432660 in words is "seven billion, seven hundred forty-two million, four hundred thirty-two thousand, six hundred sixty".