134621177685 has 32 divisors (see below), whose sum is σ = 235421033472. Its totient is φ = 65394723840.

The previous prime is 134621177609. The next prime is 134621177699. The reversal of 134621177685 is 586771126431.

It is a happy number.

It is not a de Polignac number, because 134621177685 - 2²⁸ = 134352742229 is a prime.

It is a super-2 number, since 2×134621177685² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8507034 + ... + 8522843.

It is an arithmetic number, because the mean of its divisors is an integer number (7356907296).

Almost surely, 2^134621177685 is an apocalyptic number.

134621177685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134621177685 is a deficient number, since it is larger than the sum of its proper divisors (100799855787).

134621177685 is a wasteful number, since it uses less digits than its factorization.

134621177685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17029933.

The product of its digits is 1693440, while the sum is 51.

The spelling of 134621177685 in words is "one hundred thirty-four billion, six hundred twenty-one million, one hundred seventy-seven thousand, six hundred eighty-five".