68470651447 has 4 divisors (see below), whose sum is σ = 74695256136. Its totient is φ = 62246046760.

The previous prime is 68470651429. The next prime is 68470651451. The reversal of 68470651447 is 74415607486.

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

It is a cyclic number.

It is not a de Polignac number, because 68470651447 - 2²⁷ = 68336433719 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68470651394 and 68470651403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68470651247) 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, 3112302328 + ... + 3112302349.

It is an arithmetic number, because the mean of its divisors is an integer number (18673814034).

Almost surely, 2^68470651447 is an apocalyptic number.

68470651447 is a deficient number, since it is larger than the sum of its proper divisors (6224604689).

68470651447 is a wasteful number, since it uses less digits than its factorization.

68470651447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6224604688.

The product of its (nonzero) digits is 4515840, while the sum is 52.

It can be divided in two parts, 68470 and 651447, that added together give a palindrome (719917).

The spelling of 68470651447 in words is "sixty-eight billion, four hundred seventy million, six hundred fifty-one thousand, four hundred forty-seven".