2135262690 has 96 divisors (see below), whose sum is σ = 6110297856. Its totient is φ = 513031680.

The previous prime is 2135262601. The next prime is 2135262751. The reversal of 2135262690 is 962625312.

2135262690 is a `hidden beast` number, since 21 + 3 + 5 + 2 + 626 + 9 + 0 = 666.

It is a super-2 number, since 2×2135262690² = 9118693510612072200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102327 + ... + 121413.

It is an arithmetic number, because the mean of its divisors is an integer number (63648936).

Almost surely, 2^2135262690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2135262690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3055148928).

2135262690 is an abundant number, since it is smaller than the sum of its proper divisors (3975035166).

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

2135262690 is a wasteful number, since it uses less digits than its factorization.

2135262690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19224 (or 19221 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 2135262690 is about 46208.9027136546. The cubic root of 2135262690 is about 1287.7071403299.

The spelling of 2135262690 in words is "two billion, one hundred thirty-five million, two hundred sixty-two thousand, six hundred ninety".