1800378378396 has 72 divisors (see below), whose sum is σ = 4948612978400. Its totient is φ = 548584285824.

The previous prime is 1800378378341. The next prime is 1800378378431. The reversal of 1800378378396 is 6938738730081.

1800378378396 is a `hidden beast` number, since 180 + 0 + 37 + 8 + 37 + 8 + 396 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18626371 + ... + 18722778.

Almost surely, 2^{1800378378396} is an apocalyptic number.

It is an amenable number.

1800378378396 is an abundant number, since it is smaller than the sum of its proper divisors (3148234600004).

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

1800378378396 is a wasteful number, since it uses less digits than its factorization.

1800378378396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37349275 (or 37349270 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 63.

The spelling of 1800378378396 in words is "one trillion, eight hundred billion, three hundred seventy-eight million, three hundred seventy-eight thousand, three hundred ninety-six".