1247204607888 has 20 divisors (see below), whose sum is σ = 3221945237168. Its totient is φ = 415734869280.

The previous prime is 1247204607863. The next prime is 1247204607899. The reversal of 1247204607888 is 8887064027421.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12991714618 + ... + 12991714713.

Almost surely, 2^{1247204607888} is an apocalyptic number.

It is an amenable number.

1247204607888 is an abundant number, since it is smaller than the sum of its proper divisors (1974740629280).

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

1247204607888 is a wasteful number, since it uses less digits than its factorization.

1247204607888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25983429342 (or 25983429336 counting only the distinct ones).

The product of its (nonzero) digits is 9633792, while the sum is 57.

The spelling of 1247204607888 in words is "one trillion, two hundred forty-seven billion, two hundred four million, six hundred seven thousand, eight hundred eighty-eight".