8134402758581 has 8 divisors (see below), whose sum is σ = 8899032432384. Its totient is φ = 7373962837120.

The previous prime is 8134402758533. The next prime is 8134402758607. The reversal of 8134402758581 is 1858572044318.

It is a happy number.

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

It is not a de Polignac number, because 8134402758581 - 2³⁴ = 8117222889397 is a prime.

It is a super-2 number, since 2×8134402758581² (a number of 27 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 (8134402758281) 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, 1047434021 + ... + 1047441786.

It is an arithmetic number, because the mean of its divisors is an integer number (1112379054048).

Almost surely, 2^{8134402758581} is an apocalyptic number.

It is an amenable number.

8134402758581 is a deficient number, since it is larger than the sum of its proper divisors (764629673803).

8134402758581 is a wasteful number, since it uses less digits than its factorization.

8134402758581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094876171.

The product of its (nonzero) digits is 8601600, while the sum is 56.

The spelling of 8134402758581 in words is "eight trillion, one hundred thirty-four billion, four hundred two million, seven hundred fifty-eight thousand, five hundred eighty-one".