78232189830 has 16 divisors (see below), whose sum is σ = 187757255664. Its totient is φ = 20861917280.

The previous prime is 78232189817. The next prime is 78232189853. The reversal of 78232189830 is 3898123287.

It is a super-2 number, since 2×78232189830² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1303869801 + ... + 1303869860.

It is an arithmetic number, because the mean of its divisors is an integer number (11734828479).

Almost surely, 2^78232189830 is an apocalyptic number.

78232189830 is an abundant number, since it is smaller than the sum of its proper divisors (109525065834).

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

78232189830 is a wasteful number, since it uses less digits than its factorization.

78232189830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607739671.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 78232189830 in words is "seventy-eight billion, two hundred thirty-two million, one hundred eighty-nine thousand, eight hundred thirty".