11502453987 has 24 divisors (see below), whose sum is σ = 16664819600. Its totient is φ = 7645192128.

The previous prime is 11502453971. The next prime is 11502454001. The reversal of 11502453987 is 78935420511.

11502453987 is a `hidden beast` number, since 1 + 1 + 502 + 4 + 53 + 98 + 7 = 666.

11502453987 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11502453987 - 2⁴ = 11502453971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11502453917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7883064 + ... + 7884522.

Almost surely, 2^11502453987 is an apocalyptic number.

11502453987 is a deficient number, since it is larger than the sum of its proper divisors (5162365613).

11502453987 is a wasteful number, since it uses less digits than its factorization.

11502453987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3507 (or 3504 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The spelling of 11502453987 in words is "eleven billion, five hundred two million, four hundred fifty-three thousand, nine hundred eighty-seven".