12601783446 has 36 divisors (see below), whose sum is σ = 29322913788. Its totient is φ = 3599959608.

The previous prime is 12601783429. The next prime is 12601783451. The reversal of 12601783446 is 64438710621.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 12601783398 and 12601783407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1921545 + ... + 1928091.

It is an arithmetic number, because the mean of its divisors is an integer number (814525383).

Almost surely, 2^12601783446 is an apocalyptic number.

12601783446 is an abundant number, since it is smaller than the sum of its proper divisors (16721130342).

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

12601783446 is an frugal number, since it uses more digits than its factorization.

12601783446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13113 (or 6559 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 12601783446 in words is "twelve billion, six hundred one million, seven hundred eighty-three thousand, four hundred forty-six".