422634677521 has 16 divisors (see below), whose sum is σ = 493691172480. Its totient is φ = 354310548480.

The previous prime is 422634677459. The next prime is 422634677623. The reversal of 422634677521 is 125776436224.

It is not a de Polignac number, because 422634677521 - 2⁹ = 422634677009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422634677021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2515920 + ... + 2678641.

It is an arithmetic number, because the mean of its divisors is an integer number (30855698280).

Almost surely, 2^422634677521 is an apocalyptic number.

It is an amenable number.

422634677521 is a deficient number, since it is larger than the sum of its proper divisors (71056494959).

422634677521 is a wasteful number, since it uses less digits than its factorization.

422634677521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5194824.

The product of its digits is 3386880, while the sum is 49.

The spelling of 422634677521 in words is "four hundred twenty-two billion, six hundred thirty-four million, six hundred seventy-seven thousand, five hundred twenty-one".