78590493430 has 16 divisors (see below), whose sum is σ = 145286210160. Its totient is φ = 30586570272.

The previous prime is 78590493403. The next prime is 78590493431. The reversal of 78590493430 is 3439409587.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78590493431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106203000 + ... + 106203739.

It is an arithmetic number, because the mean of its divisors is an integer number (9080388135).

Almost surely, 2^78590493430 is an apocalyptic number.

78590493430 is a deficient number, since it is larger than the sum of its proper divisors (66695716730).

78590493430 is a wasteful number, since it uses less digits than its factorization.

78590493430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212406783.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 78590493430 in words is "seventy-eight billion, five hundred ninety million, four hundred ninety-three thousand, four hundred thirty".