28934360020 has 12 divisors (see below), whose sum is σ = 60762156084. Its totient is φ = 11573744000.

The previous prime is 28934360017. The next prime is 28934360029. The reversal of 28934360020 is 2006343982.

It can be written as a sum of positive squares in 2 ways, for example, as 4412679184 + 24521680836 = 66428^2 + 156594^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28934360029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723358981 + ... + 723359020.

It is an arithmetic number, because the mean of its divisors is an integer number (5063513007).

Almost surely, 2^28934360020 is an apocalyptic number.

28934360020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28934360020 is an abundant number, since it is smaller than the sum of its proper divisors (31827796064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28934360020 is a wasteful number, since it uses less digits than its factorization.

28934360020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446718010 (or 1446718008 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 37.

The spelling of 28934360020 in words is "twenty-eight billion, nine hundred thirty-four million, three hundred sixty thousand, twenty".