142767811893 has 32 divisors (see below), whose sum is σ = 222463217664. Its totient is φ = 79743938112.

The previous prime is 142767811807. The next prime is 142767811909. The reversal of 142767811893 is 398118767241.

It is not a de Polignac number, because 142767811893 - 2¹³ = 142767803701 is a prime.

It is a super-2 number, since 2×142767811893² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142767811393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 684871 + ... + 868667.

It is an arithmetic number, because the mean of its divisors is an integer number (6951975552).

Almost surely, 2^142767811893 is an apocalyptic number.

It is an amenable number.

142767811893 is a deficient number, since it is larger than the sum of its proper divisors (79695405771).

142767811893 is a wasteful number, since it uses less digits than its factorization.

142767811893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184641.

The product of its digits is 4064256, while the sum is 57.

The spelling of 142767811893 in words is "one hundred forty-two billion, seven hundred sixty-seven million, eight hundred eleven thousand, eight hundred ninety-three".