2801861223936 has 80 divisors (see below), whose sum is σ = 7605170117424. Its totient is φ = 916331945984.

The previous prime is 2801861223901. The next prime is 2801861223943. The reversal of 2801861223936 is 6393221681082.

It is a happy number.

It is a super-2 number, since 2×2801861223936² (a number of 26 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, 17127351 + ... + 17290166.

Almost surely, 2^{2801861223936} is an apocalyptic number.

It is an amenable number.

2801861223936 is an abundant number, since it is smaller than the sum of its proper divisors (4803308893488).

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

2801861223936 is an equidigital number, since it uses as much as digits as its factorization.

2801861223936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34417591 (or 34417575 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 2801861223936 in words is "two trillion, eight hundred one billion, eight hundred sixty-one million, two hundred twenty-three thousand, nine hundred thirty-six".