6142978862859 has 8 divisors (see below), whose sum is σ = 8192345241600. Its totient is φ = 4094465863016.

The previous prime is 6142978862819. The next prime is 6142978862897. The reversal of 6142978862859 is 9582688792416.

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 6142978862859 - 2⁹ = 6142978862347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6142978862819) 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, 213327927 + ... + 213356720.

It is an arithmetic number, because the mean of its divisors is an integer number (1024043155200).

Almost surely, 2^{6142978862859} is an apocalyptic number.

6142978862859 is a deficient number, since it is larger than the sum of its proper divisors (2049366378741).

6142978862859 is a wasteful number, since it uses less digits than its factorization.

6142978862859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426689449.

The product of its digits is 836075520, while the sum is 75.

The spelling of 6142978862859 in words is "six trillion, one hundred forty-two billion, nine hundred seventy-eight million, eight hundred sixty-two thousand, eight hundred fifty-nine".