178948915147 has 2 divisors, whose sum is σ = 178948915148. Its totient is φ = 178948915146.

The previous prime is 178948915133. The next prime is 178948915213. The reversal of 178948915147 is 741519849871.

It is a weak prime.

It is an emirp because it is prime and its reverse (741519849871) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-178948915147 is a prime.

It is not a weakly prime, because it can be changed into another prime (178948955147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89474457573 + 89474457574.

It is an arithmetic number, because the mean of its divisors is an integer number (89474457574).

Almost surely, 2^178948915147 is an apocalyptic number.

178948915147 is a deficient number, since it is larger than the sum of its proper divisors (1).

178948915147 is an equidigital number, since it uses as much as digits as its factorization.

178948915147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20321280, while the sum is 64.

The spelling of 178948915147 in words is "one hundred seventy-eight billion, nine hundred forty-eight million, nine hundred fifteen thousand, one hundred forty-seven".