28923769960 has 32 divisors (see below), whose sum is σ = 65722833000. Its totient is φ = 11454956800.

The previous prime is 28923769937. The next prime is 28923769969. The reversal of 28923769960 is 6996732982.

It can be written as a sum of positive squares in 4 ways, for example, as 28488713796 + 435056164 = 168786^2 + 20858^2 .

It is not an unprimeable number, because it can be changed into a prime (28923769969) 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, 3575635 + ... + 3583714.

Almost surely, 2^28923769960 is an apocalyptic number.

28923769960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28923769960 is an abundant number, since it is smaller than the sum of its proper divisors (36799063040).

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

28923769960 is a wasteful number, since it uses less digits than its factorization.

28923769960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7159461 (or 7159457 counting only the distinct ones).

The product of its (nonzero) digits is 17635968, while the sum is 61.

The spelling of 28923769960 in words is "twenty-eight billion, nine hundred twenty-three million, seven hundred sixty-nine thousand, nine hundred sixty".