36513838420 has 24 divisors (see below), whose sum is σ = 76849857000. Its totient is φ = 14573002752.

The previous prime is 36513838409. The next prime is 36513838429. The reversal of 36513838420 is 2483831563.

It can be written as a sum of positive squares in 4 ways, for example, as 954439236 + 35559399184 = 30894^2 + 188572^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36513838429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2024085 + ... + 2042044.

It is an arithmetic number, because the mean of its divisors is an integer number (3202077375).

Almost surely, 2^36513838420 is an apocalyptic number.

It is an amenable number.

36513838420 is an abundant number, since it is smaller than the sum of its proper divisors (40336018580).

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

36513838420 is a wasteful number, since it uses less digits than its factorization.

36513838420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4066587 (or 4066585 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 36513838420 in words is "thirty-six billion, five hundred thirteen million, eight hundred thirty-eight thousand, four hundred twenty".