78466093924 has 27 divisors (see below), whose sum is σ = 138147144793. Its totient is φ = 38996907488.

The previous prime is 78466093829. The next prime is 78466093931. The reversal of 78466093924 is 42939066487.

It is a happy number.

The square root of 78466093924 is 280118.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2272428900 + 76193665024 = 47670^2 + 276032^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 127173264 + ... + 127173880.

Almost surely, 2^78466093924 is an apocalyptic number.

78466093924 is the 280118-th square number.

It is an amenable number.

78466093924 is a deficient number, since it is larger than the sum of its proper divisors (59681050869).

78466093924 is an frugal number, since it uses more digits than its factorization.

78466093924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1692 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 58.

The spelling of 78466093924 in words is "seventy-eight billion, four hundred sixty-six million, ninety-three thousand, nine hundred twenty-four".