1297534025860 has 48 divisors (see below), whose sum is σ = 2759591116800. Its totient is φ = 512392143744.

The previous prime is 1297534025791. The next prime is 1297534025867. The reversal of 1297534025860 is 685204357921.

It is a junction number, because it is equal to n+sod(n) for n = 1297534025798 and 1297534025807.

It is not an unprimeable number, because it can be changed into a prime (1297534025867) 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, 18164374 + ... + 18235666.

It is an arithmetic number, because the mean of its divisors is an integer number (57491481600).

It is a 1-persistent number, because it is pandigital, but 2⋅1297534025860 = 2595068051720 is not.

Almost surely, 2^{1297534025860} is an apocalyptic number.

1297534025860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1297534025860 is an abundant number, since it is smaller than the sum of its proper divisors (1462057090940).

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

1297534025860 is a wasteful number, since it uses less digits than its factorization.

1297534025860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82900 (or 82898 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 1297534025860 in words is "one trillion, two hundred ninety-seven billion, five hundred thirty-four million, twenty-five thousand, eight hundred sixty".