28789012651629 has 32 divisors (see below), whose sum is σ = 41675778218880. Its totient is φ = 17615186629632.

The previous prime is 28789012651627. The next prime is 28789012651631. The reversal of 28789012651629 is 92615621098782.

It is an interprime number because it is at equal distance from previous prime (28789012651627) and next prime (28789012651631).

It is not a de Polignac number, because 28789012651629 - 2¹ = 28789012651627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28789012651629.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28789012651627) 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, 28801632 + ... + 29784425.

It is an arithmetic number, because the mean of its divisors is an integer number (1302368069340).

Almost surely, 2^{28789012651629} is an apocalyptic number.

It is an amenable number.

28789012651629 is a deficient number, since it is larger than the sum of its proper divisors (12886765567251).

28789012651629 is a wasteful number, since it uses less digits than its factorization.

28789012651629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58586349.

The product of its (nonzero) digits is 52254720, while the sum is 66.

The spelling of 28789012651629 in words is "twenty-eight trillion, seven hundred eighty-nine billion, twelve million, six hundred fifty-one thousand, six hundred twenty-nine".