134398639872680 has 64 divisors (see below), whose sum is σ = 303367462650000. Its totient is φ = 53587024257024.

The previous prime is 134398639872647. The next prime is 134398639872689. The reversal of 134398639872680 is 86278936893431.

It can be written as a sum of positive squares in 8 ways, for example, as 109659893747044 + 24738746125636 = 10471862^2 + 4973806^2 .

It is a super-2 number, since 2×134398639872680² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (134398639872689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39071096 + ... + 42371544.

Almost surely, 2^{134398639872680} is an apocalyptic number.

134398639872680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134398639872680 is an abundant number, since it is smaller than the sum of its proper divisors (168968822777320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134398639872680 is a wasteful number, since it uses less digits than its factorization.

134398639872680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3303726 (or 3303722 counting only the distinct ones).

The product of its (nonzero) digits is 2257403904, while the sum is 77.

The spelling of 134398639872680 in words is "one hundred thirty-four trillion, three hundred ninety-eight billion, six hundred thirty-nine million, eight hundred seventy-two thousand, six hundred eighty".