68781438603 has 20 divisors (see below), whose sum is σ = 102757450488. Its totient is φ = 45849888000.

The previous prime is 68781438601. The next prime is 68781438611. The reversal of 68781438603 is 30683418786.

It is not a de Polignac number, because 68781438603 - 2¹ = 68781438601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68781438603.

It is not an unprimeable number, because it can be changed into a prime (68781438601) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 957675 + ... + 1026987.

Almost surely, 2^68781438603 is an apocalyptic number.

68781438603 is a deficient number, since it is larger than the sum of its proper divisors (33976011885).

68781438603 is a wasteful number, since it uses less digits than its factorization.

68781438603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81576 (or 81567 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 68781438603 in words is "sixty-eight billion, seven hundred eighty-one million, four hundred thirty-eight thousand, six hundred three".