378450401900 has 72 divisors (see below), whose sum is σ = 857127640320. Its totient is φ = 144767275840.

The previous prime is 378450401897. The next prime is 378450401909. The reversal of 378450401900 is 9104054873.

It is a super-2 number, since 2×378450401900² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (378450401909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12651161 + ... + 12681039.

It is an arithmetic number, because the mean of its divisors is an integer number (11904550560).

Almost surely, 2^378450401900 is an apocalyptic number.

It is an amenable number.

378450401900 is an abundant number, since it is smaller than the sum of its proper divisors (478677238420).

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

378450401900 is a wasteful number, since it uses less digits than its factorization.

378450401900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35423 (or 35416 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 378450401900 in words is "three hundred seventy-eight billion, four hundred fifty million, four hundred one thousand, nine hundred".