39477449472 has 216 divisors, whose sum is σ = 109968712560. Its totient is φ = 12570624000.

The previous prime is 39477449437. The next prime is 39477449509. The reversal of 39477449472 is 27494477493.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65685972 + ... + 65686572.

It is an arithmetic number, because the mean of its divisors is an integer number (509114410).

Almost surely, 2^39477449472 is an apocalyptic number.

39477449472 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 39477449472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54984356280).

39477449472 is an abundant number, since it is smaller than the sum of its proper divisors (70491263088).

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

39477449472 is an equidigital number, since it uses as much as digits as its factorization.

39477449472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771 (or 726 counting only the distinct ones).

The product of its digits is 42674688, while the sum is 60.

The spelling of 39477449472 in words is "thirty-nine billion, four hundred seventy-seven million, four hundred forty-nine thousand, four hundred seventy-two".