538188898401 has 64 divisors (see below), whose sum is σ = 1012813424640. Its totient is φ = 274303523520.

The previous prime is 538188898393. The next prime is 538188898409. The reversal of 538188898401 is 104898881835.

538188898401 is a `hidden beast` number, since 53 + 8 + 18 + 88 + 98 + 401 = 666.

538188898401 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (538188898393) and next prime (538188898409).

It is not a de Polignac number, because 538188898401 - 2³ = 538188898393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (538188898409) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2331975 + ... + 2552348.

It is an arithmetic number, because the mean of its divisors is an integer number (15825209760).

Almost surely, 2^538188898401 is an apocalyptic number.

It is an amenable number.

538188898401 is a deficient number, since it is larger than the sum of its proper divisors (474624526239).

538188898401 is a wasteful number, since it uses less digits than its factorization.

538188898401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884403 (or 4884397 counting only the distinct ones).

The product of its (nonzero) digits is 17694720, while the sum is 63.

The spelling of 538188898401 in words is "five hundred thirty-eight billion, one hundred eighty-eight million, eight hundred ninety-eight thousand, four hundred one".