1247227903488 has 640 divisors, whose sum is σ = 4207626694656. Its totient is φ = 320156467200.

The previous prime is 1247227903459. The next prime is 1247227903567. The reversal of 1247227903488 is 8843097227421.

It is a super-2 number, since 2×1247227903488² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 352222998 + ... + 352226538.

Almost surely, 2^{1247227903488} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1247227903488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2103813347328).

1247227903488 is an abundant number, since it is smaller than the sum of its proper divisors (2960398791168).

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

1247227903488 is a wasteful number, since it uses less digits than its factorization.

1247227903488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3674 (or 3658 counting only the distinct ones).

The product of its (nonzero) digits is 10838016, while the sum is 57.

The spelling of 1247227903488 in words is "one trillion, two hundred forty-seven billion, two hundred twenty-seven million, nine hundred three thousand, four hundred eighty-eight".