147988778147 has 4 divisors (see below), whose sum is σ = 169130032176. Its totient is φ = 126847524120.

The previous prime is 147988778137. The next prime is 147988778177. The reversal of 147988778147 is 741877889741.

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 147988778147 - 2³⁴ = 130808908963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (147988778107) 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 3 ways as a sum of consecutive naturals, for example, 10570627004 + ... + 10570627017.

It is an arithmetic number, because the mean of its divisors is an integer number (42282508044).

Almost surely, 2^147988778147 is an apocalyptic number.

147988778147 is a deficient number, since it is larger than the sum of its proper divisors (21141254029).

147988778147 is an equidigital number, since it uses as much as digits as its factorization.

147988778147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21141254028.

The product of its digits is 177020928, while the sum is 71.

The spelling of 147988778147 in words is "one hundred forty-seven billion, nine hundred eighty-eight million, seven hundred seventy-eight thousand, one hundred forty-seven".