39706987380 has 144 divisors (see below), whose sum is σ = 119213591616. Its totient is φ = 9872076800.

The previous prime is 39706987361. The next prime is 39706987409. The reversal of 39706987380 is 8378960793.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1844680 + ... + 1866080.

It is an arithmetic number, because the mean of its divisors is an integer number (827872164).

Almost surely, 2^39706987380 is an apocalyptic number.

39706987380 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 39706987380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59606795808).

39706987380 is an abundant number, since it is smaller than the sum of its proper divisors (79506604236).

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

39706987380 is a wasteful number, since it uses less digits than its factorization.

39706987380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21554 (or 21535 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 60.

The spelling of 39706987380 in words is "thirty-nine billion, seven hundred six million, nine hundred eighty-seven thousand, three hundred eighty".