1287546152013 has 128 divisors (see below), whose sum is σ = 2186551664640. Its totient is φ = 741739887360.

The previous prime is 1287546151951. The next prime is 1287546152029. The reversal of 1287546152013 is 3102516457821.

1287546152013 is a `hidden beast` number, since 1 + 2 + 8 + 7 + 5 + 4 + 615 + 20 + 1 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1287546152013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1287546152013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1287546159013) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 332096631 + ... + 332100507.

It is an arithmetic number, because the mean of its divisors is an integer number (17082434880).

Almost surely, 2^{1287546152013} is an apocalyptic number.

It is an amenable number.

1287546152013 is a deficient number, since it is larger than the sum of its proper divisors (899005512627).

1287546152013 is a wasteful number, since it uses less digits than its factorization.

1287546152013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4624 (or 4618 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 1287546152013 in words is "one trillion, two hundred eighty-seven billion, five hundred forty-six million, one hundred fifty-two thousand, thirteen".