142031878617 has 16 divisors (see below), whose sum is σ = 190860809472. Its totient is φ = 93946177920.

The previous prime is 142031878559. The next prime is 142031878619. The reversal of 142031878617 is 716878130241.

It is not a de Polignac number, because 142031878617 - 2²² = 142027684313 is a prime.

It is a super-3 number, since 3×142031878617³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (142031878619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679392 + ... + 863502.

It is an arithmetic number, because the mean of its divisors is an integer number (11928800592).

Almost surely, 2^142031878617 is an apocalyptic number.

It is an amenable number.

142031878617 is a deficient number, since it is larger than the sum of its proper divisors (48828930855).

142031878617 is a wasteful number, since it uses less digits than its factorization.

142031878617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186128.

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 142031878617 in words is "one hundred forty-two billion, thirty-one million, eight hundred seventy-eight thousand, six hundred seventeen".