134745791868 has 144 divisors (see below), whose sum is σ = 354952416000. Its totient is φ = 44203864320.

The previous prime is 134745791821. The next prime is 134745791891. The reversal of 134745791868 is 868197547431.

134745791868 is a `hidden beast` number, since 1 + 3 + 47 + 4 + 579 + 18 + 6 + 8 = 666.

It is a super-2 number, since 2×134745791868² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 274431103 + ... + 274431593.

Almost surely, 2^134745791868 is an apocalyptic number.

134745791868 is a gapful number since it is divisible by the number (18) 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 134745791868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177476208000).

134745791868 is an abundant number, since it is smaller than the sum of its proper divisors (220206624132).

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

134745791868 is a wasteful number, since it uses less digits than its factorization.

134745791868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929 (or 808 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 63.

The spelling of 134745791868 in words is "one hundred thirty-four billion, seven hundred forty-five million, seven hundred ninety-one thousand, eight hundred sixty-eight".