34131256563 has 8 divisors (see below), whose sum is σ = 45510873808. Its totient is φ = 22752905184.

The previous prime is 34131256531. The next prime is 34131256573. The reversal of 34131256563 is 36565213143.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 34131256563 - 2⁵ = 34131256531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34131256573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251656 + ... + 362757.

It is an arithmetic number, because the mean of its divisors is an integer number (5688859226).

Almost surely, 2^34131256563 is an apocalyptic number.

34131256563 is a deficient number, since it is larger than the sum of its proper divisors (11379617245).

34131256563 is a wasteful number, since it uses less digits than its factorization.

34131256563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632933.

The product of its digits is 194400, while the sum is 39.

The spelling of 34131256563 in words is "thirty-four billion, one hundred thirty-one million, two hundred fifty-six thousand, five hundred sixty-three".