12801861630346 has 32 divisors (see below), whose sum is σ = 20561636347920. Its totient is φ = 5956479614976.

The previous prime is 12801861630263. The next prime is 12801861630359. The reversal of 12801861630346 is 64303616810821.

It can be written as a sum of positive squares in 8 ways, for example, as 8259042561025 + 4542819069321 = 2873855^2 + 2131389^2 .

It is a super-2 number, since 2×12801861630346² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12801861630346.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93668116 + ... + 93804688.

Almost surely, 2^{12801861630346} is an apocalyptic number.

12801861630346 is a deficient number, since it is larger than the sum of its proper divisors (7759774717574).

12801861630346 is a wasteful number, since it uses less digits than its factorization.

12801861630346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167658.

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 12801861630346 in words is "twelve trillion, eight hundred one billion, eight hundred sixty-one million, six hundred thirty thousand, three hundred forty-six".