1247295846976 has 63 divisors (see below), whose sum is σ = 2495750224009. Its totient is φ = 618488196608.

The previous prime is 1247295846949. The next prime is 1247295847001. The reversal of 1247295846976 is 6796485927421.

The square root of 1247295846976 is 1116824.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 732667521600 + 514628325376 = 855960^2 + 717376^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1224038595 + ... + 1224039613.

Almost surely, 2^{1247295846976} is an apocalyptic number.

1247295846976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1247295846976 is the 1116824-th square number.

It is an amenable number.

1247295846976 is an abundant number, since it is smaller than the sum of its proper divisors (1248454377033).

1247295846976 is an frugal number, since it uses more digits than its factorization.

1247295846976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324 (or 1158 counting only the distinct ones).

The product of its digits is 365783040, while the sum is 70.

The spelling of 1247295846976 in words is "one trillion, two hundred forty-seven billion, two hundred ninety-five million, eight hundred forty-six thousand, nine hundred seventy-six".