39963798036 has 48 divisors (see below), whose sum is σ = 106019390400. Its totient is φ = 13011467616.

The previous prime is 39963798011. The next prime is 39963798037. The reversal of 39963798036 is 63089736993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39963798037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4298091 + ... + 4307378.

It is an arithmetic number, because the mean of its divisors is an integer number (2208737300).

Almost surely, 2^39963798036 is an apocalyptic number.

39963798036 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

39963798036 is an abundant number, since it is smaller than the sum of its proper divisors (66055592364).

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

39963798036 is a wasteful number, since it uses less digits than its factorization.

39963798036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8605525 (or 8605517 counting only the distinct ones).

The product of its (nonzero) digits is 39680928, while the sum is 63.

The spelling of 39963798036 in words is "thirty-nine billion, nine hundred sixty-three million, seven hundred ninety-eight thousand, thirty-six".