2042686221975 has 72 divisors (see below), whose sum is σ = 4187871503712. Its totient is φ = 932342169600.

The previous prime is 2042686221971. The next prime is 2042686222061. The reversal of 2042686221975 is 5791226862402.

2042686221975 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 6 + 8 + 622 + 1 + 9 + 7 + 5 = 666.

It is not a de Polignac number, because 2042686221975 - 2² = 2042686221971 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042686221971) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2082 + ... + 2021231.

It is an arithmetic number, because the mean of its divisors is an integer number (58164881996).

Almost surely, 2^{2042686221975} is an apocalyptic number.

2042686221975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2042686221975 is an abundant number, since it is smaller than the sum of its proper divisors (2145185281737).

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

2042686221975 is a wasteful number, since it uses less digits than its factorization.

2042686221975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023977 (or 2023969 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 2042686221975 in words is "two trillion, forty-two billion, six hundred eighty-six million, two hundred twenty-one thousand, nine hundred seventy-five".