538390221848 has 64 divisors (see below), whose sum is σ = 1023691253760. Its totient is φ = 265438238976.

The previous prime is 538390221847. The next prime is 538390221877. The reversal of 538390221848 is 848122093835.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 538390221848.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538390221847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132183140 + ... + 132187212.

It is an arithmetic number, because the mean of its divisors is an integer number (15995175840).

Almost surely, 2^538390221848 is an apocalyptic number.

It is an amenable number.

538390221848 is a deficient number, since it is larger than the sum of its proper divisors (485301031912).

538390221848 is a wasteful number, since it uses less digits than its factorization.

538390221848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016 (or 5012 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 53.

The spelling of 538390221848 in words is "five hundred thirty-eight billion, three hundred ninety million, two hundred twenty-one thousand, eight hundred forty-eight".