881409180362 has 4 divisors (see below), whose sum is σ = 1322113770546. Its totient is φ = 440704590180.

The previous prime is 881409180361. The next prime is 881409180373. The reversal of 881409180362 is 263081904188.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 772357987921 + 109051192441 = 878839^2 + 330229^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 881409180362.

It is not an unprimeable number, because it can be changed into a prime (881409180361) 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 as a sum of consecutive naturals, namely, 220352295089 + ... + 220352295092.

Almost surely, 2^881409180362 is an apocalyptic number.

881409180362 is a deficient number, since it is larger than the sum of its proper divisors (440704590184).

881409180362 is a wasteful number, since it uses less digits than its factorization.

881409180362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440704590183.

The product of its (nonzero) digits is 663552, while the sum is 50.

The spelling of 881409180362 in words is "eight hundred eighty-one billion, four hundred nine million, one hundred eighty thousand, three hundred sixty-two".