36399035648 has 72 divisors (see below), whose sum is σ = 76986524160. Its totient is φ = 17116323840.

The previous prime is 36399035593. The next prime is 36399035693. The reversal of 36399035648 is 84653099363.

It is a super-2 number, since 2×36399035648² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 36399035593 and 36399035602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8749793 + ... + 8753951.

It is an arithmetic number, because the mean of its divisors is an integer number (1069257280).

Almost surely, 2^36399035648 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 36399035648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38493262080).

36399035648 is an abundant number, since it is smaller than the sum of its proper divisors (40587488512).

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

36399035648 is a wasteful number, since it uses less digits than its factorization.

36399035648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6203 (or 6189 counting only the distinct ones).

The product of its (nonzero) digits is 12597120, while the sum is 56.

The spelling of 36399035648 in words is "thirty-six billion, three hundred ninety-nine million, thirty-five thousand, six hundred forty-eight".