68902787695 has 8 divisors (see below), whose sum is σ = 94495251744. Its totient is φ = 47247625824.

The previous prime is 68902787693. The next prime is 68902787711. The reversal of 68902787695 is 59678720986.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68902787695 - 2¹ = 68902787693 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68902787695.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68902787693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 984325504 + ... + 984325573.

It is an arithmetic number, because the mean of its divisors is an integer number (11811906468).

Almost surely, 2^68902787695 is an apocalyptic number.

68902787695 is a deficient number, since it is larger than the sum of its proper divisors (25592464049).

68902787695 is a wasteful number, since it uses less digits than its factorization.

68902787695 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1968651089.

The product of its (nonzero) digits is 91445760, while the sum is 67.

The spelling of 68902787695 in words is "sixty-eight billion, nine hundred two million, seven hundred eighty-seven thousand, six hundred ninety-five".