7378729979904 has 208 divisors, whose sum is σ = 22451064440640. Its totient is φ = 2393100288000.

The previous prime is 7378729979893. The next prime is 7378729979923. The reversal of 7378729979904 is 4099799278737.

7378729979904 is a `hidden beast` number, since 7 + 378 + 7 + 2 + 99 + 79 + 90 + 4 = 666.

It is a super-2 number, since 2×7378729979904² (a number of 27 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 3190279 + ... + 4993529.

Almost surely, 2^{7378729979904} is an apocalyptic number.

7378729979904 is a gapful number since it is divisible by the number (74) 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 7378729979904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11225532220320).

7378729979904 is an abundant number, since it is smaller than the sum of its proper divisors (15072334460736).

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

7378729979904 is a wasteful number, since it uses less digits than its factorization.

7378729979904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1803321 (or 1803293 counting only the distinct ones).

The product of its (nonzero) digits is 3024568512, while the sum is 81.

The spelling of 7378729979904 in words is "seven trillion, three hundred seventy-eight billion, seven hundred twenty-nine million, nine hundred seventy-nine thousand, nine hundred four".