72147313660427 has 8 divisors (see below), whose sum is σ = 73520806905600. Its totient is φ = 70778842329384.

The previous prime is 72147313660423. The next prime is 72147313660439. The reversal of 72147313660427 is 72406631374127.

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

It is a cyclic number.

It is not a de Polignac number, because 72147313660427 - 2² = 72147313660423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72147313660423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1255449527 + ... + 1255506992.

It is an arithmetic number, because the mean of its divisors is an integer number (9190100863200).

Almost surely, 2^{72147313660427} is an apocalyptic number.

72147313660427 is a deficient number, since it is larger than the sum of its proper divisors (1373493245173).

72147313660427 is a wasteful number, since it uses less digits than its factorization.

72147313660427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510957065.

The product of its (nonzero) digits is 7112448, while the sum is 53.

The spelling of 72147313660427 in words is "seventy-two trillion, one hundred forty-seven billion, three hundred thirteen million, six hundred sixty thousand, four hundred twenty-seven".