2135297531250 has 224 divisors, whose sum is σ = 6387593237760. Its totient is φ = 525609000000.

The previous prime is 2135297531207. The next prime is 2135297531251. The reversal of 2135297531250 is 521357925312.

2135297531250 is a `hidden beast` number, since 2 + 1 + 3 + 5 + 2 + 97 + 531 + 25 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 2135297531196 and 2135297531205.

It is not an unprimeable number, because it can be changed into a prime (2135297531251) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 10871415 + ... + 11066085.

It is an arithmetic number, because the mean of its divisors is an integer number (28516041240).

Almost surely, 2^{2135297531250} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2135297531250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3193796618880).

2135297531250 is an abundant number, since it is smaller than the sum of its proper divisors (4252295706510).

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

2135297531250 is an equidigital number, since it uses as much as digits as its factorization.

2135297531250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194725 (or 194694 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The spelling of 2135297531250 in words is "two trillion, one hundred thirty-five billion, two hundred ninety-seven million, five hundred thirty-one thousand, two hundred fifty".