538312213404 has 72 divisors (see below), whose sum is σ = 1572597542880. Its totient is φ = 152075354112.

The previous prime is 538312213381. The next prime is 538312213409. The reversal of 538312213404 is 404312213835.

538312213404 is a `hidden beast` number, since 5 + 3 + 8 + 31 + 2 + 213 + 404 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538312213409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11978469 + ... + 12023324.

It is an arithmetic number, because the mean of its divisors is an integer number (21841632540).

Almost surely, 2^538312213404 is an apocalyptic number.

It is an amenable number.

538312213404 is an abundant number, since it is smaller than the sum of its proper divisors (1034285329476).

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

538312213404 is a wasteful number, since it uses less digits than its factorization.

538312213404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24001899 (or 24001894 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 538312213404 in words is "five hundred thirty-eight billion, three hundred twelve million, two hundred thirteen thousand, four hundred four".