428161542564018 has 16 divisors (see below), whose sum is σ = 868053538349856. Its totient is φ = 140765438651040.

The previous prime is 428161542563969. The next prime is 428161542564029. The reversal of 428161542564018 is 810465245161824.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488768883768 + ... + 488768884643.

It is an arithmetic number, because the mean of its divisors is an integer number (54253346146866).

Almost surely, 2^{428161542564018} is an apocalyptic number.

428161542564018 is an abundant number, since it is smaller than the sum of its proper divisors (439891995785838).

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

428161542564018 is a wasteful number, since it uses less digits than its factorization.

428161542564018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977537768489.

The product of its (nonzero) digits is 14745600, while the sum is 57.

The spelling of 428161542564018 in words is "four hundred twenty-eight trillion, one hundred sixty-one billion, five hundred forty-two million, five hundred sixty-four thousand, eighteen".