39555274020 has 96 divisors (see below), whose sum is σ = 113811091968. Its totient is φ = 10257311232.

The previous prime is 39555274019. The next prime is 39555274027. The reversal of 39555274020 is 2047255593.

It is not an unprimeable number, because it can be changed into a prime (39555274027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5286522 + ... + 5293998.

It is an arithmetic number, because the mean of its divisors is an integer number (1185532208).

Almost surely, 2^39555274020 is an apocalyptic number.

39555274020 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 39555274020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56905545984).

39555274020 is an abundant number, since it is smaller than the sum of its proper divisors (74255817948).

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

39555274020 is a wasteful number, since it uses less digits than its factorization.

39555274020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9909 (or 9907 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 42.

The spelling of 39555274020 in words is "thirty-nine billion, five hundred fifty-five million, two hundred seventy-four thousand, twenty".