265376521380 has 48 divisors (see below), whose sum is σ = 743132162304. Its totient is φ = 70759653120.

The previous prime is 265376521369. The next prime is 265376521393. The reversal of 265376521380 is 83125673562.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357600 + ... + 811560.

It is an arithmetic number, because the mean of its divisors is an integer number (15481920048).

Almost surely, 2^265376521380 is an apocalyptic number.

265376521380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

265376521380 is an abundant number, since it is smaller than the sum of its proper divisors (477755640924).

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

265376521380 is a wasteful number, since it uses less digits than its factorization.

265376521380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463716 (or 463714 counting only the distinct ones).

The product of its (nonzero) digits is 1814400, while the sum is 48.

The spelling of 265376521380 in words is "two hundred sixty-five billion, three hundred seventy-six million, five hundred twenty-one thousand, three hundred eighty".