134690501973840 has 160 divisors (see below), whose sum is σ = 422844834055680. Its totient is φ = 35461225992192.

The previous prime is 134690501973809. The next prime is 134690501973857. The reversal of 134690501973840 is 48379105096431.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 457490362 + ... + 457784678.

It is an arithmetic number, because the mean of its divisors is an integer number (2642780212848).

Almost surely, 2^{134690501973840} is an apocalyptic number.

134690501973840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134690501973840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211422417027840).

134690501973840 is an abundant number, since it is smaller than the sum of its proper divisors (288154332081840).

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

134690501973840 is a wasteful number, since it uses less digits than its factorization.

134690501973840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318549 (or 318543 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 60.

The spelling of 134690501973840 in words is "one hundred thirty-four trillion, six hundred ninety billion, five hundred one million, nine hundred seventy-three thousand, eight hundred forty".