28401651613443 has 8 divisors (see below), whose sum is σ = 37998114105168. Its totient is φ = 18869811765344.

The previous prime is 28401651613429. The next prime is 28401651613477. The reversal of 28401651613443 is 34431615610482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28401651613443 - 2⁴ = 28401651613427 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28401651613392 and 28401651613401.

It is not an unprimeable number, because it can be changed into a prime (28401651613483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16155659880 + ... + 16155661637.

It is an arithmetic number, because the mean of its divisors is an integer number (4749764263146).

Almost surely, 2^{28401651613443} is an apocalyptic number.

28401651613443 is a deficient number, since it is larger than the sum of its proper divisors (9596462491725).

28401651613443 is a wasteful number, since it uses less digits than its factorization.

28401651613443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32311321813.

The product of its (nonzero) digits is 1658880, while the sum is 48.

The spelling of 28401651613443 in words is "twenty-eight trillion, four hundred one billion, six hundred fifty-one million, six hundred thirteen thousand, four hundred forty-three".