147994894787 has 4 divisors (see below), whose sum is σ = 147997924080. Its totient is φ = 147991865496.

The previous prime is 147994894769. The next prime is 147994894807. The reversal of 147994894787 is 787498499741.

147994894787 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 147994894787 - 2²⁰ = 147993846211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147994834787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1440143 + ... + 1539480.

It is an arithmetic number, because the mean of its divisors is an integer number (36999481020).

Almost surely, 2^147994894787 is an apocalyptic number.

147994894787 is a deficient number, since it is larger than the sum of its proper divisors (3029293).

147994894787 is an equidigital number, since it uses as much as digits as its factorization.

147994894787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3029292.

The product of its digits is 1024192512, while the sum is 77.

The spelling of 147994894787 in words is "one hundred forty-seven billion, nine hundred ninety-four million, eight hundred ninety-four thousand, seven hundred eighty-seven".