36513563680 has 96 divisors (see below), whose sum is σ = 94729315968. Its totient is φ = 13189632000.

The previous prime is 36513563623. The next prime is 36513563693. The reversal of 36513563680 is 8636531563.

It is a super-2 number, since 2×36513563680² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 36513563680.

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, 197064 + ... + 334456.

It is an arithmetic number, because the mean of its divisors is an integer number (986763708).

Almost surely, 2^36513563680 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 36513563680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47364657984).

36513563680 is an abundant number, since it is smaller than the sum of its proper divisors (58215752288).

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

36513563680 is a wasteful number, since it uses less digits than its factorization.

36513563680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137570 (or 137562 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 36513563680 in words is "thirty-six billion, five hundred thirteen million, five hundred sixty-three thousand, six hundred eighty".