20142637814557 has 8 divisors (see below), whose sum is σ = 20840419738880. Its totient is φ = 19447857103680.

The previous prime is 20142637814549. The next prime is 20142637814581. The reversal of 20142637814557 is 75541873624102.

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 20142637814557 - 2³ = 20142637814549 is a prime.

It is a super-2 number, since 2×20142637814557² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20142637814498 and 20142637814507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20142637814357) 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, 750289707 + ... + 750316552.

It is an arithmetic number, because the mean of its divisors is an integer number (2605052467360).

Almost surely, 2^{20142637814557} is an apocalyptic number.

It is an amenable number.

20142637814557 is a deficient number, since it is larger than the sum of its proper divisors (697781924323).

20142637814557 is a wasteful number, since it uses less digits than its factorization.

20142637814557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500606723.

The product of its (nonzero) digits is 11289600, while the sum is 55.

The spelling of 20142637814557 in words is "twenty trillion, one hundred forty-two billion, six hundred thirty-seven million, eight hundred fourteen thousand, five hundred fifty-seven".