1297386180350 has 24 divisors (see below), whose sum is σ = 2598764319480. Its totient is φ = 479034897120.

The previous prime is 1297386180319. The next prime is 1297386180353. The reversal of 1297386180350 is 530816837921.

It is a super-2 number, since 2×1297386180350² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1297386180292 and 1297386180301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297386180353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 997988720 + ... + 997990019.

It is an arithmetic number, because the mean of its divisors is an integer number (108281846645).

Almost surely, 2^{1297386180350} is an apocalyptic number.

1297386180350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1297386180350 is an abundant number, since it is smaller than the sum of its proper divisors (1301378139130).

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

1297386180350 is a wasteful number, since it uses less digits than its factorization.

1297386180350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995978764 (or 1995978759 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 1297386180350 in words is "one trillion, two hundred ninety-seven billion, three hundred eighty-six million, one hundred eighty thousand, three hundred fifty".