34123450520 has 32 divisors (see below), whose sum is σ = 80818700400. Its totient is φ = 12930991488.

The previous prime is 34123450451. The next prime is 34123450523. The reversal of 34123450520 is 2505432143.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34123450523) 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, 22448879 + ... + 22450398.

Almost surely, 2^34123450520 is an apocalyptic number.

It is an amenable number.

34123450520 is an abundant number, since it is smaller than the sum of its proper divisors (46695249880).

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

34123450520 is a wasteful number, since it uses less digits than its factorization.

34123450520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44899307 (or 44899303 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 34123450520 its reverse (2505432143), we get a palindrome (36628882663).

The spelling of 34123450520 in words is "thirty-four billion, one hundred twenty-three million, four hundred fifty thousand, five hundred twenty".