857379147380 has 96 divisors (see below), whose sum is σ = 2100081984000. Its totient is φ = 293905656576.

The previous prime is 857379147367. The next prime is 857379147389. The reversal of 857379147380 is 83741973758.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (857379147389) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68655497 + ... + 68667983.

It is an arithmetic number, because the mean of its divisors is an integer number (21875854000).

Almost surely, 2^857379147380 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 857379147380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1050040992000).

857379147380 is an abundant number, since it is smaller than the sum of its proper divisors (1242702836620).

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

857379147380 is a wasteful number, since it uses less digits than its factorization.

857379147380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22526 (or 22510 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 62.

The spelling of 857379147380 in words is "eight hundred fifty-seven billion, three hundred seventy-nine million, one hundred forty-seven thousand, three hundred eighty".