34013136521 has 24 divisors (see below), whose sum is σ = 42444239040. Its totient is φ = 26542463616.

The previous prime is 34013136491. The next prime is 34013136523. The reversal of 34013136521 is 12563131043.

It is not a de Polignac number, because 34013136521 - 2¹⁴ = 34013120137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34013136523) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 449870 + ... + 520008.

It is an arithmetic number, because the mean of its divisors is an integer number (1768509960).

Almost surely, 2^34013136521 is an apocalyptic number.

It is an amenable number.

34013136521 is a deficient number, since it is larger than the sum of its proper divisors (8431102519).

34013136521 is an equidigital number, since it uses as much as digits as its factorization.

34013136521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70305 (or 70232 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 34013136521 its reverse (12563131043), we get a palindrome (46576267564).

The spelling of 34013136521 in words is "thirty-four billion, thirteen million, one hundred thirty-six thousand, five hundred twenty-one".