801618667139 has 8 divisors (see below), whose sum is σ = 808580686368. Its totient is φ = 794672746560.

The previous prime is 801618667133. The next prime is 801618667141. The reversal of 801618667139 is 931766816108.

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 801618667139 - 2⁸ = 801618666883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (801618667133) 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 7 ways as a sum of consecutive naturals, for example, 3924632 + ... + 4123829.

It is an arithmetic number, because the mean of its divisors is an integer number (101072585796).

Almost surely, 2^801618667139 is an apocalyptic number.

801618667139 is a deficient number, since it is larger than the sum of its proper divisors (6962019229).

801618667139 is a wasteful number, since it uses less digits than its factorization.

801618667139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8049325.

The product of its (nonzero) digits is 2612736, while the sum is 56.

The spelling of 801618667139 in words is "eight hundred one billion, six hundred eighteen million, six hundred sixty-seven thousand, one hundred thirty-nine".