101843700642 has 24 divisors (see below), whose sum is σ = 220667226780. Its totient is φ = 33946996320.

The previous prime is 101843700641. The next prime is 101843700733. The reversal of 101843700642 is 246007348101.

101843700642 is a `hidden beast` number, since 1 + 0 + 1 + 8 + 4 + 3 + 7 + 0 + 0 + 642 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 101760362001 + 83338641 = 318999^2 + 9129^2 .

It is a super-2 number, since 2×101843700642² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101843700597 and 101843700606.

It is not an unprimeable number, because it can be changed into a prime (101843700641) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1244484 + ... + 1323792.

Almost surely, 2^101843700642 is an apocalyptic number.

101843700642 is an abundant number, since it is smaller than the sum of its proper divisors (118823526138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101843700642 is a wasteful number, since it uses less digits than its factorization.

101843700642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150658 (or 150655 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The spelling of 101843700642 in words is "one hundred one billion, eight hundred forty-three million, seven hundred thousand, six hundred forty-two".