12779397841830 has 64 divisors (see below), whose sum is σ = 31179910245120. Its totient is φ = 3351702639744.

The previous prime is 12779397841817. The next prime is 12779397841853. The reversal of 12779397841830 is 3814879397721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13874389 + ... + 14766768.

It is an arithmetic number, because the mean of its divisors is an integer number (487186097580).

Almost surely, 2^{12779397841830} is an apocalyptic number.

12779397841830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12779397841830 is an abundant number, since it is smaller than the sum of its proper divisors (18400512403290).

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

12779397841830 is a wasteful number, since it uses less digits than its factorization.

12779397841830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28641413.

The product of its (nonzero) digits is 128024064, while the sum is 69.

The spelling of 12779397841830 in words is "twelve trillion, seven hundred seventy-nine billion, three hundred ninety-seven million, eight hundred forty-one thousand, eight hundred thirty".