39678196032 has 140 divisors (see below), whose sum is σ = 117735008116. Its totient is φ = 13212979200.

The previous prime is 39678196031. The next prime is 39678196037. The reversal of 39678196032 is 23069187693.

It can be written as a sum of positive squares in 2 ways, for example, as 12326328576 + 27351867456 = 111024^2 + 165384^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 39678196032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39678196031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6222798 + ... + 6229170.

Almost surely, 2^39678196032 is an apocalyptic number.

39678196032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39678196032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58867504058).

39678196032 is an abundant number, since it is smaller than the sum of its proper divisors (78056812084).

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

39678196032 is a wasteful number, since it uses less digits than its factorization.

39678196032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7598 (or 7579 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The spelling of 39678196032 in words is "thirty-nine billion, six hundred seventy-eight million, one hundred ninety-six thousand, thirty-two".