2135779642 has 8 divisors (see below), whose sum is σ = 3278173536. Its totient is φ = 1043055132.

The previous prime is 2135779589. The next prime is 2135779661. The reversal of 2135779642 is 2469775312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2135779592 and 2135779601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12417238 + ... + 12417409.

It is an arithmetic number, because the mean of its divisors is an integer number (409771692).

Almost surely, 2^2135779642 is an apocalyptic number.

2135779642 is a deficient number, since it is larger than the sum of its proper divisors (1142393894).

2135779642 is a wasteful number, since it uses less digits than its factorization.

2135779642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24834692.

The product of its digits is 635040, while the sum is 46.

The square root of 2135779642 is about 46214.4960158607. The cubic root of 2135779642 is about 1287.8110508965.

The spelling of 2135779642 in words is "two billion, one hundred thirty-five million, seven hundred seventy-nine thousand, six hundred forty-two".