28672391199 has 32 divisors (see below), whose sum is σ = 42920340480. Its totient is φ = 16919165952.

The previous prime is 28672391159. The next prime is 28672391203. The reversal of 28672391199 is 99119327682.

It is not a de Polignac number, because 28672391199 - 2¹³ = 28672383007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28672391149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24762 + ... + 240744.

It is an arithmetic number, because the mean of its divisors is an integer number (1341260640).

Almost surely, 2^28672391199 is an apocalyptic number.

28672391199 is a deficient number, since it is larger than the sum of its proper divisors (14247949281).

28672391199 is a wasteful number, since it uses less digits than its factorization.

28672391199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216159.

The product of its digits is 2939328, while the sum is 57.

The spelling of 28672391199 in words is "twenty-eight billion, six hundred seventy-two million, three hundred ninety-one thousand, one hundred ninety-nine".