39550728480 has 384 divisors, whose sum is σ = 135796953600. Its totient is φ = 9638313984.

The previous prime is 39550728479. The next prime is 39550728499. The reversal of 39550728480 is 8482705593.

It is a super-2 number, since 2×39550728480² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47139901 + ... + 47140739.

It is an arithmetic number, because the mean of its divisors is an integer number (353637900).

Almost surely, 2^39550728480 is an apocalyptic number.

39550728480 is a gapful number since it is divisible by the number (30) 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 39550728480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67898476800).

39550728480 is an abundant number, since it is smaller than the sum of its proper divisors (96246225120).

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

39550728480 is a wasteful number, since it uses less digits than its factorization.

39550728480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036 (or 1028 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 39550728480 in words is "thirty-nine billion, five hundred fifty million, seven hundred twenty-eight thousand, four hundred eighty".