3969479455200 has 1728 divisors, whose sum is σ = 17232022080000. Its totient is φ = 891047485440.

The previous prime is 3969479455199. The next prime is 3969479455223. The reversal of 3969479455200 is 25549749693.

3969479455200 is a `hidden beast` number, since 3 + 9 + 6 + 9 + 4 + 79 + 4 + 552 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 3934072296 + ... + 3934073304.

It is an arithmetic number, because the mean of its divisors is an integer number (9972235000).

Almost surely, 2^{3969479455200} is an apocalyptic number.

3969479455200 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 3969479455200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8616011040000).

3969479455200 is an abundant number, since it is smaller than the sum of its proper divisors (13262542624800).

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

3969479455200 is a wasteful number, since it uses less digits than its factorization.

3969479455200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124 (or 1085 counting only the distinct ones).

The product of its (nonzero) digits is 73483200, while the sum is 63.

The spelling of 3969479455200 in words is "three trillion, nine hundred sixty-nine billion, four hundred seventy-nine million, four hundred fifty-five thousand, two hundred".