202181093842 has 32 divisors (see below), whose sum is σ = 373335669504. Its totient is φ = 79966958400.

The previous prime is 202181093837. The next prime is 202181093879. The reversal of 202181093842 is 248390181202.

It is a super-2 number, since 2×202181093842² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202181093795 and 202181093804.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 772492 + ... + 1000552.

It is an arithmetic number, because the mean of its divisors is an integer number (11666739672).

Almost surely, 2^202181093842 is an apocalyptic number.

202181093842 is a deficient number, since it is larger than the sum of its proper divisors (171154575662).

202181093842 is a wasteful number, since it uses less digits than its factorization.

202181093842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232954.

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 202181093842 in words is "two hundred two billion, one hundred eighty-one million, ninety-three thousand, eight hundred forty-two".