36531234520 has 128 divisors (see below), whose sum is σ = 94819092480. Its totient is φ = 12541824000.

The previous prime is 36531234473. The next prime is 36531234527. The reversal of 36531234520 is 2543213563.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36531234527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 526579 + ... + 591901.

It is an arithmetic number, because the mean of its divisors is an integer number (740774160).

Almost surely, 2^36531234520 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 36531234520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47409546240).

36531234520 is an abundant number, since it is smaller than the sum of its proper divisors (58287857960).

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

36531234520 is a wasteful number, since it uses less digits than its factorization.

36531234520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65417 (or 65413 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 34.

The spelling of 36531234520 in words is "thirty-six billion, five hundred thirty-one million, two hundred thirty-four thousand, five hundred twenty".