3681335013487 has 4 divisors (see below), whose sum is σ = 3691944048456. Its totient is φ = 3670725978520.

The previous prime is 3681335013469. The next prime is 3681335013491. The reversal of 3681335013487 is 7843105331863.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3681335013487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3681335013427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5304516964 + ... + 5304517657.

It is an arithmetic number, because the mean of its divisors is an integer number (922986012114).

Almost surely, 2^{3681335013487} is an apocalyptic number.

3681335013487 is a deficient number, since it is larger than the sum of its proper divisors (10609034969).

3681335013487 is a wasteful number, since it uses less digits than its factorization.

3681335013487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10609034968.

The product of its (nonzero) digits is 4354560, while the sum is 52.

The spelling of 3681335013487 in words is "three trillion, six hundred eighty-one billion, three hundred thirty-five million, thirteen thousand, four hundred eighty-seven".