134997009408 has 264 divisors, whose sum is σ = 397819547840. Its totient is φ = 44079759360.

The previous prime is 134997009403. The next prime is 134997009437. The reversal of 134997009408 is 804900799431.

It is not an unprimeable number, because it can be changed into a prime (134997009403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 246794991 + ... + 246795537.

Almost surely, 2^134997009408 is an apocalyptic number.

134997009408 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 134997009408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198909773920).

134997009408 is an abundant number, since it is smaller than the sum of its proper divisors (262822538432).

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

134997009408 is a wasteful number, since it uses less digits than its factorization.

134997009408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073 (or 1052 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 54.

The spelling of 134997009408 in words is "one hundred thirty-four billion, nine hundred ninety-seven million, nine thousand, four hundred eight".