134747726399 has 64 divisors (see below), whose sum is σ = 169389480960. Its totient is φ = 105304320000.

The previous prime is 134747726363. The next prime is 134747726479. The reversal of 134747726399 is 993627747431.

It is a Cunningham number, because it is equal to 367080²-1.

It is not a de Polignac number, because 134747726399 - 2⁸ = 134747726143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134747726329) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 121503257 + ... + 121504365.

It is an arithmetic number, because the mean of its divisors is an integer number (2646710640).

Almost surely, 2^134747726399 is an apocalyptic number.

134747726399 is a deficient number, since it is larger than the sum of its proper divisors (34641754561).

134747726399 is a wasteful number, since it uses less digits than its factorization.

134747726399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632.

The product of its digits is 48009024, while the sum is 62.

The spelling of 134747726399 in words is "one hundred thirty-four billion, seven hundred forty-seven million, seven hundred twenty-six thousand, three hundred ninety-nine".