34531221551 has 4 divisors (see below), whose sum is σ = 34546646400. Its totient is φ = 34515796704.

The previous prime is 34531221497. The next prime is 34531221611. The reversal of 34531221551 is 15512213543.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 34531221551 - 2¹⁴ = 34531205167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34531220551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7709066 + ... + 7713543.

It is an arithmetic number, because the mean of its divisors is an integer number (8636661600).

Almost surely, 2^34531221551 is an apocalyptic number.

34531221551 is a deficient number, since it is larger than the sum of its proper divisors (15424849).

34531221551 is a wasteful number, since it uses less digits than its factorization.

34531221551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15424848.

The product of its digits is 18000, while the sum is 32.

The spelling of 34531221551 in words is "thirty-four billion, five hundred thirty-one million, two hundred twenty-one thousand, five hundred fifty-one".