1078365729 has 16 divisors (see below), whose sum is σ = 1729710080. Its totient is φ = 583776720.

The previous prime is 1078365713. The next prime is 1078365731. The reversal of 1078365729 is 9275638701.

It is not a de Polignac number, because 1078365729 - 2⁴ = 1078365713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1078365779) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1350937 + ... + 1351734.

It is an arithmetic number, because the mean of its divisors is an integer number (108106880).

Almost surely, 2^1078365729 is an apocalyptic number.

1078365729 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1078365729 is a deficient number, since it is larger than the sum of its proper divisors (651344351).

1078365729 is a wasteful number, since it uses less digits than its factorization.

1078365729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2702700.

The product of its (nonzero) digits is 635040, while the sum is 48.

The square root of 1078365729 is about 32838.4793953679. The cubic root of 1078365729 is about 1025.4677948805.

The spelling of 1078365729 in words is "one billion, seventy-eight million, three hundred sixty-five thousand, seven hundred twenty-nine".