101942779799 has 8 divisors (see below), whose sum is σ = 116858018688. Its totient is φ = 87115537080.

The previous prime is 101942779789. The next prime is 101942779831. The reversal of 101942779799 is 997977249101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101942779799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101942779789) 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 7 ways as a sum of consecutive naturals, for example, 21996557 + ... + 22001190.

It is an arithmetic number, because the mean of its divisors is an integer number (14607252336).

Almost surely, 2^101942779799 is an apocalyptic number.

101942779799 is a deficient number, since it is larger than the sum of its proper divisors (14915238889).

101942779799 is an equidigital number, since it uses as much as digits as its factorization.

101942779799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43998085.

The product of its (nonzero) digits is 18003384, while the sum is 65.

The spelling of 101942779799 in words is "one hundred one billion, nine hundred forty-two million, seven hundred seventy-nine thousand, seven hundred ninety-nine".