147786561447 has 16 divisors (see below), whose sum is σ = 226365408000. Its totient is φ = 84011899392.

The previous prime is 147786561437. The next prime is 147786561451. The reversal of 147786561447 is 744165687741.

It is not a de Polignac number, because 147786561447 - 2⁸ = 147786561191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147786561437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18227697 + ... + 18235802.

It is an arithmetic number, because the mean of its divisors is an integer number (14147838000).

Almost surely, 2^147786561447 is an apocalyptic number.

147786561447 is a deficient number, since it is larger than the sum of its proper divisors (78578846553).

147786561447 is a wasteful number, since it uses less digits than its factorization.

147786561447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36463702.

The product of its digits is 31610880, while the sum is 60.

The spelling of 147786561447 in words is "one hundred forty-seven billion, seven hundred eighty-six million, five hundred sixty-one thousand, four hundred forty-seven".