58136921856 has 504 divisors, whose sum is σ = 193668967296. Its totient is φ = 17288847360.

The previous prime is 58136921851. The next prime is 58136921879. The reversal of 58136921856 is 65812963185.

58136921856 is a `hidden beast` number, since 581 + 3 + 6 + 9 + 2 + 1 + 8 + 56 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (58136921851) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 75209086 + ... + 75209858.

It is an arithmetic number, because the mean of its divisors is an integer number (384263824).

Almost surely, 2^58136921856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 58136921856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96834483648).

58136921856 is an abundant number, since it is smaller than the sum of its proper divisors (135532045440).

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

58136921856 is an equidigital number, since it uses as much as digits as its factorization.

58136921856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851 (or 822 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 54.

The spelling of 58136921856 in words is "fifty-eight billion, one hundred thirty-six million, nine hundred twenty-one thousand, eight hundred fifty-six".