42154336405 has 16 divisors (see below), whose sum is σ = 53452730880. Its totient is φ = 31848905088.

The previous prime is 42154336397. The next prime is 42154336409. The reversal of 42154336405 is 50463345124.

It is a cyclic number.

It is not a de Polignac number, because 42154336405 - 2³ = 42154336397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42154336409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2310912 + ... + 2329081.

It is an arithmetic number, because the mean of its divisors is an integer number (3340795680).

Almost surely, 2^42154336405 is an apocalyptic number.

It is an amenable number.

42154336405 is a deficient number, since it is larger than the sum of its proper divisors (11298394475).

42154336405 is a wasteful number, since it uses less digits than its factorization.

42154336405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4640100.

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 42154336405 in words is "forty-two billion, one hundred fifty-four million, three hundred thirty-six thousand, four hundred five".