687053264039 has 4 divisors (see below), whose sum is σ = 687571014624. Its totient is φ = 686535513456.

The previous prime is 687053264021. The next prime is 687053264057. The reversal of 687053264039 is 930462350786.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (687053264021) and next prime (687053264057).

It is a cyclic number.

It is not a de Polignac number, because 687053264039 - 2⁸ = 687053263783 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 (687053264239) 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, 258873302 + ... + 258875955.

It is an arithmetic number, because the mean of its divisors is an integer number (171892753656).

Almost surely, 2^687053264039 is an apocalyptic number.

687053264039 is a deficient number, since it is larger than the sum of its proper divisors (517750585).

687053264039 is a wasteful number, since it uses less digits than its factorization.

687053264039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517750584.

The product of its (nonzero) digits is 6531840, while the sum is 53.

The spelling of 687053264039 in words is "six hundred eighty-seven billion, fifty-three million, two hundred sixty-four thousand, thirty-nine".