28390969029 has 16 divisors (see below), whose sum is σ = 37945514880. Its totient is φ = 18881924160.

The previous prime is 28390969027. The next prime is 28390969031. The reversal of 28390969029 is 92096909382.

It is an interprime number because it is at equal distance from previous prime (28390969027) and next prime (28390969031).

It is not a de Polignac number, because 28390969029 - 2¹ = 28390969027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28390969029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28390969027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2307907 + ... + 2320175.

It is an arithmetic number, because the mean of its divisors is an integer number (2371594680).

Almost surely, 2^28390969029 is an apocalyptic number.

It is an amenable number.

28390969029 is a deficient number, since it is larger than the sum of its proper divisors (9554545851).

28390969029 is a wasteful number, since it uses less digits than its factorization.

28390969029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14060.

The product of its (nonzero) digits is 3779136, while the sum is 57.

The spelling of 28390969029 in words is "twenty-eight billion, three hundred ninety million, nine hundred sixty-nine thousand, twenty-nine".