42185653995 has 8 divisors (see below), whose sum is σ = 67497046416. Its totient is φ = 22499015456.

The previous prime is 42185653943. The next prime is 42185653999. The reversal of 42185653995 is 59935658124.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42185653995 - 2⁹ = 42185653483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42185653999) 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, 1406188452 + ... + 1406188481.

It is an arithmetic number, because the mean of its divisors is an integer number (8437130802).

Almost surely, 2^42185653995 is an apocalyptic number.

42185653995 is a deficient number, since it is larger than the sum of its proper divisors (25311392421).

42185653995 is a wasteful number, since it uses less digits than its factorization.

42185653995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812376941.

The product of its digits is 11664000, while the sum is 57.

It can be divided in two parts, 421 and 85653995, that added together give a triangular number (85654416 = T₁₃₀₈₈).

The spelling of 42185653995 in words is "forty-two billion, one hundred eighty-five million, six hundred fifty-three thousand, nine hundred ninety-five".