79875143550 has 96 divisors (see below), whose sum is σ = 220225592160. Its totient is φ = 21287923200.

The previous prime is 79875143539. The next prime is 79875143573. The reversal of 79875143550 is 5534157897.

79875143550 is a `hidden beast` number, since 7 + 9 + 8 + 75 + 14 + 3 + 550 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2496454 + ... + 2528246.

It is an arithmetic number, because the mean of its divisors is an integer number (2294016585).

Almost surely, 2^79875143550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79875143550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110112796080).

79875143550 is an abundant number, since it is smaller than the sum of its proper divisors (140350448610).

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

79875143550 is a wasteful number, since it uses less digits than its factorization.

79875143550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33675 (or 33664 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 54.

The spelling of 79875143550 in words is "seventy-nine billion, eight hundred seventy-five million, one hundred forty-three thousand, five hundred fifty".