28737473360 has 40 divisors (see below), whose sum is σ = 66866381736. Its totient is φ = 11486085120.

The previous prime is 28737473333. The next prime is 28737473363. The reversal of 28737473360 is 6337473782.

It can be written as a sum of positive squares in 4 ways, for example, as 18324495424 + 10412977936 = 135368^2 + 102044^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 28737473299 and 28737473308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28737473363) 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, 34721 + ... + 242240.

Almost surely, 2^28737473360 is an apocalyptic number.

28737473360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28737473360 is an abundant number, since it is smaller than the sum of its proper divisors (38128908376).

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

28737473360 is a wasteful number, since it uses less digits than its factorization.

28737473360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278271 (or 278265 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 50.

The spelling of 28737473360 in words is "twenty-eight billion, seven hundred thirty-seven million, four hundred seventy-three thousand, three hundred sixty".