78192768 has 32 divisors (see below), whose sum is σ = 207700560. Its totient is φ = 26064128.

The previous prime is 78192743. The next prime is 78192811. The reversal of 78192768 is 86729187.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×78192768² = 12228217935003648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101430 + ... + 102197.

Almost surely, 2^78192768 is an apocalyptic number.

It is an amenable number.

78192768 is an abundant number, since it is smaller than the sum of its proper divisors (129507792).

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

78192768 is a wasteful number, since it uses less digits than its factorization.

78192768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203644 (or 203632 counting only the distinct ones).

The product of its digits is 338688, while the sum is 48.

The square root of 78192768 is about 8842.6674708484. The cubic root of 78192768 is about 427.6175580395.

The spelling of 78192768 in words is "seventy-eight million, one hundred ninety-two thousand, seven hundred sixty-eight".