3955389979200 has 336 divisors, whose sum is σ = 14457915777024. Its totient is φ = 938480076800.

The previous prime is 3955389979169. The next prime is 3955389979201. The reversal of 3955389979200 is 29799835593.

It is not an unprimeable number, because it can be changed into a prime (3955389979201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1684657 + ... + 3278543.

Almost surely, 2^{3955389979200} is an apocalyptic number.

3955389979200 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 3955389979200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7228957888512).

3955389979200 is an abundant number, since it is smaller than the sum of its proper divisors (10502525797824).

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

3955389979200 is a wasteful number, since it uses less digits than its factorization.

3955389979200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593970 (or 1593955 counting only the distinct ones).

The product of its (nonzero) digits is 165337200, while the sum is 69.

The spelling of 3955389979200 in words is "three trillion, nine hundred fifty-five billion, three hundred eighty-nine million, nine hundred seventy-nine thousand, two hundred".