1297434902500 has 405 divisors, whose sum is σ = 3321858228381. Its totient is φ = 442862640000.

The previous prime is 1297434902497. The next prime is 1297434902537. The reversal of 1297434902500 is 52094347921.

The square root of 1297434902500 is 1139050.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 753746930596 + 543687971904 = 868186^2 + 737352^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 11903072446 + ... + 11903072554.

Almost surely, 2^{1297434902500} is an apocalyptic number.

1297434902500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1297434902500 is the 1139050-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1297434902500

1297434902500 is an abundant number, since it is smaller than the sum of its proper divisors (2024423325881).

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

1297434902500 is a wasteful number, since it uses less digits than its factorization.

1297434902500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 1297434902500 in words is "one trillion, two hundred ninety-seven billion, four hundred thirty-four million, nine hundred two thousand, five hundred".