39874767648 has 96 divisors (see below), whose sum is σ = 105873868800. Its totient is φ = 13139702016.

The previous prime is 39874767641. The next prime is 39874767649. The reversal of 39874767648 is 84676747893.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (39874767641) 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, 3182965 + ... + 3195467.

It is an arithmetic number, because the mean of its divisors is an integer number (1102852800).

Almost surely, 2^39874767648 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 39874767648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52936934400).

39874767648 is an abundant number, since it is smaller than the sum of its proper divisors (65999101152).

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

39874767648 is a wasteful number, since it uses less digits than its factorization.

39874767648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12894 (or 12886 counting only the distinct ones).

The product of its digits is 341397504, while the sum is 69.

The spelling of 39874767648 in words is "thirty-nine billion, eight hundred seventy-four million, seven hundred sixty-seven thousand, six hundred forty-eight".