424955921634 has 12 divisors (see below), whose sum is σ = 920737830246. Its totient is φ = 141651973872.

The previous prime is 424955921633. The next prime is 424955921639. The reversal of 424955921634 is 436129559424.

424955921634 is a `hidden beast` number, since 4 + 2 + 4 + 9 + 5 + 592 + 16 + 34 = 666.

It can be written as a sum of positive squares in only one way, i.e., 382113131409 + 42842790225 = 618153^2 + 206985^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (424955921633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11804331139 + ... + 11804331174.

Almost surely, 2^424955921634 is an apocalyptic number.

424955921634 is an abundant number, since it is smaller than the sum of its proper divisors (495781908612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

424955921634 is a wasteful number, since it uses less digits than its factorization.

424955921634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23608662321 (or 23608662318 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 54.

The spelling of 424955921634 in words is "four hundred twenty-four billion, nine hundred fifty-five million, nine hundred twenty-one thousand, six hundred thirty-four".