135112778019 has 12 divisors (see below), whose sum is σ = 201892657200. Its totient is φ = 86969144304.

The previous prime is 135112777997. The next prime is 135112778111. The reversal of 135112778019 is 910877211531.

It is not a de Polignac number, because 135112778019 - 2¹¹ = 135112775971 is a prime.

It is a super-2 number, since 2×135112778019² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135112771019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258836479 + ... + 258837000.

It is an arithmetic number, because the mean of its divisors is an integer number (16824388100).

Almost surely, 2^135112778019 is an apocalyptic number.

135112778019 is a deficient number, since it is larger than the sum of its proper divisors (66779879181).

135112778019 is a wasteful number, since it uses less digits than its factorization.

135112778019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517673514 (or 517673511 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 45.

The spelling of 135112778019 in words is "one hundred thirty-five billion, one hundred twelve million, seven hundred seventy-eight thousand, nineteen".