11280687498 has 12 divisors (see below), whose sum is σ = 24441489618. Its totient is φ = 3760229160.

The previous prime is 11280687493. The next prime is 11280687499. The reversal of 11280687498 is 89478608211.

11280687498 is a `hidden beast` number, since 1 + 12 + 80 + 68 + 7 + 498 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9997400169 + 1283287329 = 99987^2 + 35823^2 .

It is not an unprimeable number, because it can be changed into a prime (11280687491) 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, 313352413 + ... + 313352448.

Almost surely, 2^11280687498 is an apocalyptic number.

11280687498 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11280687498 is an abundant number, since it is smaller than the sum of its proper divisors (13160802120).

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

11280687498 is a wasteful number, since it uses less digits than its factorization.

11280687498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626704869 (or 626704866 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The spelling of 11280687498 in words is "eleven billion, two hundred eighty million, six hundred eighty-seven thousand, four hundred ninety-eight".