134444688890 has 32 divisors (see below), whose sum is σ = 243456711696. Its totient is φ = 53454407680.

The previous prime is 134444688863. The next prime is 134444688913. The reversal of 134444688890 is 98886444431.

It is a happy number.

It is a Cunningham number, because it is equal to 366667²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 48400440001 + 86044248889 = 220001^2 + 293333^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11503850 + ... + 11515530.

Almost surely, 2^134444688890 is an apocalyptic number.

134444688890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

134444688890 is a deficient number, since it is larger than the sum of its proper divisors (109012022806).

134444688890 is a wasteful number, since it uses less digits than its factorization.

134444688890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18514.

The product of its (nonzero) digits is 21233664, while the sum is 59.

The spelling of 134444688890 in words is "one hundred thirty-four billion, four hundred forty-four million, six hundred eighty-eight thousand, eight hundred ninety".