538698397595904 has 5184 divisors, whose sum is σ = 2161051017216000. Its totient is φ = 133525440921600.

The previous prime is 538698397595783. The next prime is 538698397595923. The reversal of 538698397595904 is 409595793896835.

538698397595904 is a `hidden beast` number, since 5 + 3 + 8 + 6 + 9 + 8 + 3 + 9 + 7 + 5 + 9 + 590 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (5184).

It is an unprimeable number.

It is a polite number, since it can be written in 575 ways as a sum of consecutive naturals, for example, 6818967058137 + ... + 6818967058215.

Almost surely, 2^{538698397595904} is an apocalyptic number.

538698397595904 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538698397595904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1080525508608000).

538698397595904 is an abundant number, since it is smaller than the sum of its proper divisors (1622352619620096).

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

538698397595904 is an equidigital number, since it uses as much as digits as its factorization.

538698397595904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 79361856000, while the sum is 90.

The spelling of 538698397595904 in words is "five hundred thirty-eight trillion, six hundred ninety-eight billion, three hundred ninety-seven million, five hundred ninety-five thousand, nine hundred four".