12799047420 has 36 divisors (see below), whose sum is σ = 38823777720. Its totient is φ = 3413079264.

The previous prime is 12799047419. The next prime is 12799047439. The reversal of 12799047420 is 2474099721.

It is a happy number.

12799047420 is a `hidden beast` number, since 1 + 2 + 79 + 90 + 474 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×12799047420² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35552730 + ... + 35553089.

It is an arithmetic number, because the mean of its divisors is an integer number (1078438270).

Almost surely, 2^12799047420 is an apocalyptic number.

12799047420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12799047420 is an abundant number, since it is smaller than the sum of its proper divisors (26024730300).

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

12799047420 is a wasteful number, since it uses less digits than its factorization.

12799047420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71105834 (or 71105829 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 12799047420 in words is "twelve billion, seven hundred ninety-nine million, forty-seven thousand, four hundred twenty".