814022652921 has 8 divisors (see below), whose sum is σ = 1089490395840. Its totient is φ = 540618339312.

The previous prime is 814022652901. The next prime is 814022653043. The reversal of 814022652921 is 129256220418.

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

It is not a de Polignac number, because 814022652921 - 2¹⁷ = 814022521849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (814022652901) 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, 515856406 + ... + 515857983.

It is an arithmetic number, because the mean of its divisors is an integer number (136186299480).

Almost surely, 2^814022652921 is an apocalyptic number.

It is an amenable number.

814022652921 is a deficient number, since it is larger than the sum of its proper divisors (275467742919).

814022652921 is a wasteful number, since it uses less digits than its factorization.

814022652921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031714655.

The product of its (nonzero) digits is 138240, while the sum is 42.

The spelling of 814022652921 in words is "eight hundred fourteen billion, twenty-two million, six hundred fifty-two thousand, nine hundred twenty-one".