538730534421 has 12 divisors (see below), whose sum is σ = 778290776172. Its totient is φ = 359096251776.

The previous prime is 538730534417. The next prime is 538730534437. The reversal of 538730534421 is 124435037835.

538730534421 is a `hidden beast` number, since 5 + 3 + 8 + 73 + 0 + 534 + 42 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 504612750321 + 34117784100 = 710361^2 + 184710^2 .

It is not a de Polignac number, because 538730534421 - 2² = 538730534417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538730534411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4727046 + ... + 4839671.

It is an arithmetic number, because the mean of its divisors is an integer number (64857564681).

Almost surely, 2^538730534421 is an apocalyptic number.

It is an amenable number.

538730534421 is a deficient number, since it is larger than the sum of its proper divisors (239560241751).

538730534421 is a wasteful number, since it uses less digits than its factorization.

538730534421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9572980 (or 9572977 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 538730534421 in words is "five hundred thirty-eight billion, seven hundred thirty million, five hundred thirty-four thousand, four hundred twenty-one".