34520391781355 has 16 divisors (see below), whose sum is σ = 43803688336128. Its totient is φ = 26073624000000.

The previous prime is 34520391781303. The next prime is 34520391781363. The reversal of 34520391781355 is 55318719302543.

It is not a de Polignac number, because 34520391781355 - 2²² = 34520387587051 is a prime.

It is a super-3 number, since 3×34520391781355³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34520391781355.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2715996146 + ... + 2716008855.

It is an arithmetic number, because the mean of its divisors is an integer number (2737730521008).

Almost surely, 2^{34520391781355} is an apocalyptic number.

34520391781355 is a deficient number, since it is larger than the sum of its proper divisors (9283296554773).

34520391781355 is a wasteful number, since it uses less digits than its factorization.

34520391781355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5432005078.

The product of its (nonzero) digits is 13608000, while the sum is 56.

The spelling of 34520391781355 in words is "thirty-four trillion, five hundred twenty billion, three hundred ninety-one million, seven hundred eighty-one thousand, three hundred fifty-five".