5261172912 has 100 divisors (see below), whose sum is σ = 15384711496. Its totient is φ = 1735603200.

The previous prime is 5261172883. The next prime is 5261172919. The reversal of 5261172912 is 2192711625.

5261172912 is a `hidden beast` number, since 5 + 2 + 611 + 7 + 29 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (5261172919) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 104787 + ... + 146637.

Almost surely, 2^5261172912 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 5261172912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7692355748).

5261172912 is an abundant number, since it is smaller than the sum of its proper divisors (10123538584).

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

5261172912 is a wasteful number, since it uses less digits than its factorization.

5261172912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41968 (or 41953 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 5261172912 is about 72533.9431714559. The cubic root of 5261172912 is about 1739.2453802677.

The spelling of 5261172912 in words is "five billion, two hundred sixty-one million, one hundred seventy-two thousand, nine hundred twelve".