1297427068532 has 48 divisors (see below), whose sum is σ = 2659218156672. Its totient is φ = 542287025280.

The previous prime is 1297427068519. The next prime is 1297427068537. The reversal of 1297427068532 is 2358607247921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297427068537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19283 + ... + 1610970.

It is an arithmetic number, because the mean of its divisors is an integer number (55400378264).

It is a 2-persistent number, because it is pandigital, and so is 2⋅1297427068532 = 2594854137064, but 3⋅1297427068532 = 3892281205596 is not.

Almost surely, 2^{1297427068532} 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 1297427068532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1329609078336).

1297427068532 is an abundant number, since it is smaller than the sum of its proper divisors (1361791088140).

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

1297427068532 is a wasteful number, since it uses less digits than its factorization.

1297427068532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1630968 (or 1630966 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 56.

The spelling of 1297427068532 in words is "one trillion, two hundred ninety-seven billion, four hundred twenty-seven million, sixty-eight thousand, five hundred thirty-two".