34042243878 has 48 divisors (see below), whose sum is σ = 78161219136. Its totient is φ = 10671125760.

The previous prime is 34042243877. The next prime is 34042243889. The reversal of 34042243878 is 87834224043.

34042243878 is a `hidden beast` number, since 3 + 40 + 4 + 224 + 387 + 8 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34042243877) 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, 331500 + ... + 421872.

It is an arithmetic number, because the mean of its divisors is an integer number (1628358732).

Almost surely, 2^34042243878 is an apocalyptic number.

34042243878 is an abundant number, since it is smaller than the sum of its proper divisors (44118975258).

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

34042243878 is a wasteful number, since it uses less digits than its factorization.

34042243878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91629 (or 91626 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 45.

The spelling of 34042243878 in words is "thirty-four billion, forty-two million, two hundred forty-three thousand, eight hundred seventy-eight".