28714597408 has 36 divisors (see below), whose sum is σ = 65761559262. Its totient is φ = 12306255360.

The previous prime is 28714597403. The next prime is 28714597423. The reversal of 28714597408 is 80479541782.

It can be written as a sum of positive squares in only one way, i.e., 28421913744 + 292683664 = 168588^2 + 17108^2 .

It is not an unprimeable number, because it can be changed into a prime (28714597403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9154873 + ... + 9158008.

Almost surely, 2^28714597408 is an apocalyptic number.

28714597408 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28714597408 is an abundant number, since it is smaller than the sum of its proper divisors (37046961854).

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

28714597408 is a wasteful number, since it uses less digits than its factorization.

28714597408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18312905 (or 18312890 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 55.

The spelling of 28714597408 in words is "twenty-eight billion, seven hundred fourteen million, five hundred ninety-seven thousand, four hundred eight".