134555557778 has 8 divisors (see below), whose sum is σ = 212456143920. Its totient is φ = 63736843140.

The previous prime is 134555557727. The next prime is 134555557781. The reversal of 134555557778 is 877755555431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 134555557778.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1770467828 + ... + 1770467903.

It is an arithmetic number, because the mean of its divisors is an integer number (26557017990).

Almost surely, 2^134555557778 is an apocalyptic number.

134555557778 is a deficient number, since it is larger than the sum of its proper divisors (77900586142).

134555557778 is a wasteful number, since it uses less digits than its factorization.

134555557778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3540935752.

The product of its digits is 102900000, while the sum is 62.

The spelling of 134555557778 in words is "one hundred thirty-four billion, five hundred fifty-five million, five hundred fifty-seven thousand, seven hundred seventy-eight".