525764271836490 has 128 divisors (see below), whose sum is σ = 1314742501440000. Its totient is φ = 134438073090048.

The previous prime is 525764271836429. The next prime is 525764271836681. The reversal of 525764271836490 is 94638172467525.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 98608987 + ... + 103803953.

It is an arithmetic number, because the mean of its divisors is an integer number (10271425792500).

It is a 2-persistent number, because it is pandigital, and so is 2⋅525764271836490 = 1051528543672980, but 3⋅525764271836490 = 1577292815509470 is not.

Almost surely, 2^{525764271836490} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525764271836490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (657371250720000).

525764271836490 is an abundant number, since it is smaller than the sum of its proper divisors (788978229603510).

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

525764271836490 is a wasteful number, since it uses less digits than its factorization.

525764271836490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5196336.

The product of its (nonzero) digits is 609638400, while the sum is 69.

The spelling of 525764271836490 in words is "five hundred twenty-five trillion, seven hundred sixty-four billion, two hundred seventy-one million, eight hundred thirty-six thousand, four hundred ninety".