28401361733328 has 80 divisors (see below), whose sum is σ = 75081315488256. Its totient is φ = 9246357912960.

The previous prime is 28401361733323. The next prime is 28401361733333. The reversal of 28401361733328 is 82333716310482.

It is an interprime number because it is at equal distance from previous prime (28401361733323) and next prime (28401361733333).

It is a super-4 number, since 4×28401361733328⁴ (a number of 55 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28401361733323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32106723 + ... + 32979453.

Almost surely, 2^{28401361733328} is an apocalyptic number.

It is an amenable number.

28401361733328 is an abundant number, since it is smaller than the sum of its proper divisors (46679953754928).

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

28401361733328 is a wasteful number, since it uses less digits than its factorization.

28401361733328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888552 (or 888546 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 51.

The spelling of 28401361733328 in words is "twenty-eight trillion, four hundred one billion, three hundred sixty-one million, seven hundred thirty-three thousand, three hundred twenty-eight".