814189622642 has 16 divisors (see below), whose sum is σ = 1332621515232. Its totient is φ = 369999741120.

The previous prime is 814189622539. The next prime is 814189622647. The reversal of 814189622642 is 246226981418.

It is not an unprimeable number, because it can be changed into a prime (814189622647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4226183 + ... + 4414634.

It is an arithmetic number, because the mean of its divisors is an integer number (83288844702).

Almost surely, 2^814189622642 is an apocalyptic number.

814189622642 is a deficient number, since it is larger than the sum of its proper divisors (518431892590).

814189622642 is a wasteful number, since it uses less digits than its factorization.

814189622642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8645113.

The product of its digits is 2654208, while the sum is 53.

The spelling of 814189622642 in words is "eight hundred fourteen billion, one hundred eighty-nine million, six hundred twenty-two thousand, six hundred forty-two".