68231953451 has 8 divisors (see below), whose sum is σ = 68368847904. Its totient is φ = 68095189120.

The previous prime is 68231953441. The next prime is 68231953453. The reversal of 68231953451 is 15435913286.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68231953451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68231953396 and 68231953405.

It is not an unprimeable number, because it can be changed into a prime (68231953453) 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, 1053266 + ... + 1116168.

It is an arithmetic number, because the mean of its divisors is an integer number (8546105988).

Almost surely, 2^68231953451 is an apocalyptic number.

68231953451 is a deficient number, since it is larger than the sum of its proper divisors (136894453).

68231953451 is a wasteful number, since it uses less digits than its factorization.

68231953451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65061.

The product of its digits is 777600, while the sum is 47.

The spelling of 68231953451 in words is "sixty-eight billion, two hundred thirty-one million, nine hundred fifty-three thousand, four hundred fifty-one".