68147755503 has 8 divisors (see below), whose sum is σ = 91116777600. Its totient is φ = 45305285208.

The previous prime is 68147755499. The next prime is 68147755513. The reversal of 68147755503 is 30555774186.

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

It is not a de Polignac number, because 68147755503 - 2² = 68147755499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68147755513) 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, 31636693 + ... + 31638846.

It is an arithmetic number, because the mean of its divisors is an integer number (11389597200).

Almost surely, 2^68147755503 is an apocalyptic number.

68147755503 is a deficient number, since it is larger than the sum of its proper divisors (22969022097).

68147755503 is a wasteful number, since it uses less digits than its factorization.

68147755503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63275901.

The product of its (nonzero) digits is 3528000, while the sum is 51.

The spelling of 68147755503 in words is "sixty-eight billion, one hundred forty-seven million, seven hundred fifty-five thousand, five hundred three".