36639607648 has 48 divisors (see below), whose sum is σ = 83432401920. Its totient is φ = 15513492096.

The previous prime is 36639607597. The next prime is 36639607649. The reversal of 36639607648 is 84670693663.

It is a junction number, because it is equal to n+sod(n) for n = 36639607592 and 36639607601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36639607649) 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, 966768 + ... + 1003951.

It is an arithmetic number, because the mean of its divisors is an integer number (1738175040).

Almost surely, 2^36639607648 is an apocalyptic number.

It is an amenable number.

36639607648 is an abundant number, since it is smaller than the sum of its proper divisors (46792794272).

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

36639607648 is a wasteful number, since it uses less digits than its factorization.

36639607648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970819 (or 1970811 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 58.

The spelling of 36639607648 in words is "thirty-six billion, six hundred thirty-nine million, six hundred seven thousand, six hundred forty-eight".