34512336352391 has 4 divisors (see below), whose sum is σ = 36328775107800. Its totient is φ = 32695897596984.

The previous prime is 34512336352321. The next prime is 34512336352409. The reversal of 34512336352391 is 19325363321543.

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 34512336352391 - 2¹⁸ = 34512336090247 is a prime.

It is a super-2 number, since 2×34512336352391² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34512336352321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 908219377676 + ... + 908219377713.

It is an arithmetic number, because the mean of its divisors is an integer number (9082193776950).

Almost surely, 2^{34512336352391} is an apocalyptic number.

34512336352391 is a deficient number, since it is larger than the sum of its proper divisors (1816438755409).

34512336352391 is a wasteful number, since it uses less digits than its factorization.

34512336352391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816438755408.

The product of its digits is 5248800, while the sum is 50.

The spelling of 34512336352391 in words is "thirty-four trillion, five hundred twelve billion, three hundred thirty-six million, three hundred fifty-two thousand, three hundred ninety-one".