12587905442 has 32 divisors (see below), whose sum is σ = 22880724480. Its totient is φ = 5070343680.

The previous prime is 12587905423. The next prime is 12587905511. The reversal of 12587905442 is 24450978521.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134342 + ... + 207902.

It is an arithmetic number, because the mean of its divisors is an integer number (715022640).

Almost surely, 2^12587905442 is an apocalyptic number.

12587905442 is a deficient number, since it is larger than the sum of its proper divisors (10292819038).

12587905442 is a wasteful number, since it uses less digits than its factorization.

12587905442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74306.

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 12587905442 in words is "twelve billion, five hundred eighty-seven million, nine hundred five thousand, four hundred forty-two".