158438678580 has 432 divisors, whose sum is σ = 633763428480. Its totient is φ = 31668973056.

The previous prime is 158438678551. The next prime is 158438678581. The reversal of 158438678580 is 85876834851.

158438678580 is a `hidden beast` number, since 1 + 5 + 8 + 43 + 8 + 6 + 7 + 8 + 580 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158438678581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2142177 + ... + 2214903.

Almost surely, 2^158438678580 is an apocalyptic number.

158438678580 is a gapful number since it is divisible by the number (10) 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 158438678580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316881714240).

158438678580 is an abundant number, since it is smaller than the sum of its proper divisors (475324749900).

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

158438678580 is a wasteful number, since it uses less digits than its factorization.

158438678580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72788 (or 72776 counting only the distinct ones).

The product of its (nonzero) digits is 51609600, while the sum is 63.

The spelling of 158438678580 in words is "one hundred fifty-eight billion, four hundred thirty-eight million, six hundred seventy-eight thousand, five hundred eighty".