28400465607 has 8 divisors (see below), whose sum is σ = 37879875840. Its totient is φ = 18927349560.

The previous prime is 28400465579. The next prime is 28400465609. The reversal of 28400465607 is 70656400482.

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

It is not a de Polignac number, because 28400465607 - 2¹⁴ = 28400449223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28400465609) 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, 1563007 + ... + 1581072.

It is an arithmetic number, because the mean of its divisors is an integer number (4734984480).

Almost surely, 2^28400465607 is an apocalyptic number.

28400465607 is a deficient number, since it is larger than the sum of its proper divisors (9479410233).

28400465607 is a wasteful number, since it uses less digits than its factorization.

28400465607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147093.

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 28400465607 in words is "twenty-eight billion, four hundred million, four hundred sixty-five thousand, six hundred seven".