42135378154500 has 96 divisors (see below), whose sum is σ = 123376112705664. Its totient is φ = 11174022864000.

The previous prime is 42135378154411. The next prime is 42135378154517. The reversal of 42135378154500 is 545187353124.

It is a self number, because there is not a number n which added to its sum of digits gives 42135378154500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77325882 + ... + 77868881.

It is an arithmetic number, because the mean of its divisors is an integer number (1285167840684).

Almost surely, 2^{42135378154500} is an apocalyptic number.

It is an amenable number.

42135378154500 is an abundant number, since it is smaller than the sum of its proper divisors (81240734551164).

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

42135378154500 is a wasteful number, since it uses less digits than its factorization.

42135378154500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155194966 (or 155194954 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 48.

The spelling of 42135378154500 in words is "forty-two trillion, one hundred thirty-five billion, three hundred seventy-eight million, one hundred fifty-four thousand, five hundred".