78483345729 has 32 divisors (see below), whose sum is σ = 106945044864. Its totient is φ = 51186124800.

The previous prime is 78483345713. The next prime is 78483345739. The reversal of 78483345729 is 92754338487.

It is a happy number.

It is not a de Polignac number, because 78483345729 - 2⁴ = 78483345713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78483345709) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21541782 + ... + 21545424.

It is an arithmetic number, because the mean of its divisors is an integer number (3342032652).

Almost surely, 2^78483345729 is an apocalyptic number.

It is an amenable number.

78483345729 is a deficient number, since it is larger than the sum of its proper divisors (28461699135).

78483345729 is a wasteful number, since it uses less digits than its factorization.

78483345729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4577.

The product of its digits is 40642560, while the sum is 60.

The spelling of 78483345729 in words is "seventy-eight billion, four hundred eighty-three million, three hundred forty-five thousand, seven hundred twenty-nine".