39793243680 has 384 divisors, whose sum is σ = 148004962560. Its totient is φ = 9951068160.

The previous prime is 39793243669. The next prime is 39793243703. The reversal of 39793243680 is 8634239793.

39793243680 is a `hidden beast` number, since 39 + 79 + 32 + 436 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 24307822 + ... + 24309458.

It is an arithmetic number, because the mean of its divisors is an integer number (385429590).

Almost surely, 2^39793243680 is an apocalyptic number.

39793243680 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 39793243680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74002481280).

39793243680 is an abundant number, since it is smaller than the sum of its proper divisors (108211718880).

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

39793243680 is a wasteful number, since it uses less digits than its factorization.

39793243680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009 (or 1995 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 54.

The spelling of 39793243680 in words is "thirty-nine billion, seven hundred ninety-three million, two hundred forty-three thousand, six hundred eighty".