34254502134520 has 128 divisors (see below), whose sum is σ = 78878123352000. Its totient is φ = 13383970099200.

The previous prime is 34254502134373. The next prime is 34254502134547. The reversal of 34254502134520 is 2543120545243.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3394554675 + ... + 3394564765.

Almost surely, 2^{34254502134520} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34254502134520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39439061676000).

34254502134520 is an abundant number, since it is smaller than the sum of its proper divisors (44623621217480).

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

34254502134520 is a wasteful number, since it uses less digits than its factorization.

34254502134520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19649 (or 19645 counting only the distinct ones).

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 34254502134520 its reverse (2543120545243), we get a palindrome (36797622679763).

The spelling of 34254502134520 in words is "thirty-four trillion, two hundred fifty-four billion, five hundred two million, one hundred thirty-four thousand, five hundred twenty".