1297959156000 has 576 divisors, whose sum is σ = 4993924755456. Its totient is φ = 317364480000.

The previous prime is 1297959155897. The next prime is 1297959156023. The reversal of 1297959156000 is 6519597921.

1297959156000 is a `hidden beast` number, since 1 + 2 + 9 + 79 + 5 + 9 + 1 + 560 + 0 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 70658817 + ... + 70677183.

It is an arithmetic number, because the mean of its divisors is an integer number (8670008256).

Almost surely, 2^{1297959156000} is an apocalyptic number.

1297959156000 is a gapful number since it is divisible by the number (10) 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 1297959156000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2496962377728).

1297959156000 is an abundant number, since it is smaller than the sum of its proper divisors (3695965599456).

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

1297959156000 is a wasteful number, since it uses less digits than its factorization.

1297959156000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18562 (or 18541 counting only the distinct ones).

The product of its (nonzero) digits is 1530900, while the sum is 54.

The spelling of 1297959156000 in words is "one trillion, two hundred ninety-seven billion, nine hundred fifty-nine million, one hundred fifty-six thousand".