42156403554 has 16 divisors (see below), whose sum is σ = 86273570592. Its totient is φ = 13725340608.

The previous prime is 42156403537. The next prime is 42156403649. The reversal of 42156403554 is 45530465124.

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 7 ways as a sum of consecutive naturals, for example, 81698199 + ... + 81698714.

It is an arithmetic number, because the mean of its divisors is an integer number (5392098162).

Almost surely, 2^42156403554 is an apocalyptic number.

42156403554 is an abundant number, since it is smaller than the sum of its proper divisors (44117167038).

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

42156403554 is a wasteful number, since it uses less digits than its factorization.

42156403554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163396961.

The product of its (nonzero) digits is 288000, while the sum is 39.

Adding to 42156403554 its reverse (45530465124), we get a palindrome (87686868678).

The spelling of 42156403554 in words is "forty-two billion, one hundred fifty-six million, four hundred three thousand, five hundred fifty-four".