2135256531748 has 24 divisors (see below), whose sum is σ = 3788194137728. Its totient is φ = 1052917724736.

The previous prime is 2135256531743. The next prime is 2135256531757. The reversal of 2135256531748 is 8471356525312.

It is a junction number, because it is equal to n+sod(n) for n = 2135256531695 and 2135256531704.

It is not an unprimeable number, because it can be changed into a prime (2135256531743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3383665 + ... + 3964807.

Almost surely, 2^{2135256531748} is an apocalyptic number.

It is an amenable number.

2135256531748 is a deficient number, since it is larger than the sum of its proper divisors (1652937605980).

2135256531748 is a wasteful number, since it uses less digits than its factorization.

2135256531748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593803 (or 593801 counting only the distinct ones).

The product of its digits is 6048000, while the sum is 52.

The spelling of 2135256531748 in words is "two trillion, one hundred thirty-five billion, two hundred fifty-six million, five hundred thirty-one thousand, seven hundred forty-eight".