28213900707 has 8 divisors (see below), whose sum is σ = 37761571584. Its totient is φ = 18737748488.

The previous prime is 28213900691. The next prime is 28213900711. The reversal of 28213900707 is 70700931282.

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 28213900707 - 2⁴ = 28213900691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28213900747) 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, 17878743 + ... + 17880320.

It is an arithmetic number, because the mean of its divisors is an integer number (4720196448).

Almost surely, 2^28213900707 is an apocalyptic number.

28213900707 is a deficient number, since it is larger than the sum of its proper divisors (9547670877).

28213900707 is a wasteful number, since it uses less digits than its factorization.

28213900707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35759329.

The product of its (nonzero) digits is 42336, while the sum is 39.

The spelling of 28213900707 in words is "twenty-eight billion, two hundred thirteen million, nine hundred thousand, seven hundred seven".