1247147475232 has 12 divisors (see below), whose sum is σ = 2455321591926. Its totient is φ = 623573737600.

The previous prime is 1247147475209. The next prime is 1247147475239. The reversal of 1247147475232 is 2325747417421.

It can be written as a sum of positive squares in only one way, i.e., 1246786627216 + 360848016 = 1116596^2 + 18996^2 .

It is not an unprimeable number, because it can be changed into a prime (1247147475239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19486679269 + ... + 19486679332.

Almost surely, 2^{1247147475232} is an apocalyptic number.

It is an amenable number.

1247147475232 is a deficient number, since it is larger than the sum of its proper divisors (1208174116694).

1247147475232 is an equidigital number, since it uses as much as digits as its factorization.

1247147475232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38973358611 (or 38973358603 counting only the distinct ones).

The product of its digits is 2634240, while the sum is 49.

The spelling of 1247147475232 in words is "one trillion, two hundred forty-seven billion, one hundred forty-seven million, four hundred seventy-five thousand, two hundred thirty-two".