9877572146 has 8 divisors (see below), whose sum is σ = 15956078124. Its totient is φ = 4558879440.

The previous prime is 9877572137. The next prime is 9877572149. The reversal of 9877572146 is 6412757789.

It can be written as a sum of positive squares in 2 ways, for example, as 9048765625 + 828806521 = 95125^2 + 28789^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 9877572091 and 9877572100.

It is not an unprimeable number, because it can be changed into a prime (9877572149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189953285 + ... + 189953336.

Almost surely, 2^9877572146 is an apocalyptic number.

9877572146 is a deficient number, since it is larger than the sum of its proper divisors (6078505978).

9877572146 is a wasteful number, since it uses less digits than its factorization.

9877572146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379906636.

The product of its digits is 5927040, while the sum is 56.

The square root of 9877572146 is about 99385.9756001821. The cubic root of 9877572146 is about 2145.6064702209.

The spelling of 9877572146 in words is "nine billion, eight hundred seventy-seven million, five hundred seventy-two thousand, one hundred forty-six".