1247605425320 has 32 divisors (see below), whose sum is σ = 2813123196000. Its totient is φ = 497973549888.

The previous prime is 1247605425233. The next prime is 1247605425323. The reversal of 1247605425320 is 235245067421.

It is not an unprimeable number, because it can be changed into a prime (1247605425323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33375470 + ... + 33412829.

It is an arithmetic number, because the mean of its divisors is an integer number (87910099875).

Almost surely, 2^{1247605425320} is an apocalyptic number.

1247605425320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1247605425320 is an abundant number, since it is smaller than the sum of its proper divisors (1565517770680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1247605425320 is a wasteful number, since it uses less digits than its factorization.

1247605425320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66788777 (or 66788773 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 41.

The spelling of 1247605425320 in words is "one trillion, two hundred forty-seven billion, six hundred five million, four hundred twenty-five thousand, three hundred twenty".