2135859516 has 60 divisors (see below), whose sum is σ = 6381216688. Its totient is φ = 610244928.

The previous prime is 2135859503. The next prime is 2135859577. The reversal of 2135859516 is 6159585312.

2135859516 is a `hidden beast` number, since 2 + 1 + 3 + 58 + 595 + 1 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 468601 + ... + 473136.

Almost surely, 2^2135859516 is an apocalyptic number.

It is an amenable number.

2135859516 is an abundant number, since it is smaller than the sum of its proper divisors (4245357172).

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

2135859516 is a wasteful number, since it uses less digits than its factorization.

2135859516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 941760 (or 941749 counting only the distinct ones).

The product of its digits is 324000, while the sum is 45.

The square root of 2135859516 is about 46215.3601738643. The cubic root of 2135859516 is about 1287.8271045716.

It can be divided in two parts, 21 and 35859516, that multiplied together give a triangular number (753049836 = T₃₈₈₀₈).

The spelling of 2135859516 in words is "two billion, one hundred thirty-five million, eight hundred fifty-nine thousand, five hundred sixteen".