1297943885088 has 192 divisors, whose sum is σ = 3875433206400. Its totient is φ = 422491438080.

The previous prime is 1297943885009. The next prime is 1297943885111. The reversal of 1297943885088 is 8805883497921.

1297943885088 is a `hidden beast` number, since 1 + 2 + 9 + 79 + 43 + 8 + 8 + 508 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7237270 + ... + 7414442.

It is an arithmetic number, because the mean of its divisors is an integer number (20184547950).

Almost surely, 2^{1297943885088} is an apocalyptic number.

1297943885088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1297943885088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1937716603200).

1297943885088 is an abundant number, since it is smaller than the sum of its proper divisors (2577489321312).

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

1297943885088 is a wasteful number, since it uses less digits than its factorization.

1297943885088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177392 (or 177378 counting only the distinct ones).

The product of its (nonzero) digits is 278691840, while the sum is 72.

The spelling of 1297943885088 in words is "one trillion, two hundred ninety-seven billion, nine hundred forty-three million, eight hundred eighty-five thousand, eighty-eight".