507856640287787 has 12 divisors (see below), whose sum is σ = 591502259880360. Its totient is φ = 434767612912416.

The previous prime is 507856640287739. The next prime is 507856640287847. The reversal of 507856640287787 is 787782046658705.

It is not a de Polignac number, because 507856640287787 - 2¹² = 507856640283691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (507856640287387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6405659513 + ... + 6405738794.

It is an arithmetic number, because the mean of its divisors is an integer number (49291854990030).

Almost surely, 2^{507856640287787} is an apocalyptic number.

507856640287787 is a deficient number, since it is larger than the sum of its proper divisors (83645619592573).

507856640287787 is a wasteful number, since it uses less digits than its factorization.

507856640287787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12811399130 (or 12811399123 counting only the distinct ones).

The product of its (nonzero) digits is 8851046400, while the sum is 80.

The spelling of 507856640287787 in words is "five hundred seven trillion, eight hundred fifty-six billion, six hundred forty million, two hundred eighty-seven thousand, seven hundred eighty-seven".