39747219072 has 128 divisors (see below), whose sum is σ = 115252182720. Its totient is φ = 12036710400.

The previous prime is 39747219007. The next prime is 39747219097. The reversal of 39747219072 is 27091274793.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11576268 + ... + 11579700.

Almost surely, 2^39747219072 is an apocalyptic number.

39747219072 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 39747219072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57626091360).

39747219072 is an abundant number, since it is smaller than the sum of its proper divisors (75504963648).

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

39747219072 is a wasteful number, since it uses less digits than its factorization.

39747219072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6202 (or 6190 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 51.

The spelling of 39747219072 in words is "thirty-nine billion, seven hundred forty-seven million, two hundred nineteen thousand, seventy-two".