134473854781881 has 24 divisors (see below), whose sum is σ = 201735029208960. Its totient is φ = 86254656687456.

The previous prime is 134473854781879. The next prime is 134473854781883. The reversal of 134473854781881 is 188187458374431.

134473854781881 is a `hidden beast` number, since 1 + 3 + 4 + 4 + 73 + 8 + 5 + 478 + 1 + 8 + 81 = 666.

It is an interprime number because it is at equal distance from previous prime (134473854781879) and next prime (134473854781883).

It is not a de Polignac number, because 134473854781881 - 2¹ = 134473854781879 is a prime.

It is a super-2 number, since 2×134473854781881² (a number of 29 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (72) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (134473854781883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2694086010 + ... + 2694135923.

It is an arithmetic number, because the mean of its divisors is an integer number (8405626217040).

Almost surely, 2^{134473854781881} is an apocalyptic number.

It is an amenable number.

134473854781881 is a deficient number, since it is larger than the sum of its proper divisors (67261174427079).

134473854781881 is a wasteful number, since it uses less digits than its factorization.

134473854781881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5388222045 (or 5388222042 counting only the distinct ones).

The product of its digits is 578027520, while the sum is 72.

The spelling of 134473854781881 in words is "one hundred thirty-four trillion, four hundred seventy-three billion, eight hundred fifty-four million, seven hundred eighty-one thousand, eight hundred eighty-one".