526154197272 has 128 divisors (see below), whose sum is σ = 1438860672000. Its totient is φ = 159008624640.

The previous prime is 526154197267. The next prime is 526154197337. The reversal of 526154197272 is 272791451625.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 202912008 + ... + 202914600.

It is an arithmetic number, because the mean of its divisors is an integer number (11241099000).

Almost surely, 2^526154197272 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 526154197272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (719430336000).

526154197272 is an abundant number, since it is smaller than the sum of its proper divisors (912706474728).

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

526154197272 is a wasteful number, since it uses less digits than its factorization.

526154197272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4401 (or 4397 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 51.

The spelling of 526154197272 in words is "five hundred twenty-six billion, one hundred fifty-four million, one hundred ninety-seven thousand, two hundred seventy-two".