1780474379904 has 320 divisors, whose sum is σ = 5914802789280. Its totient is φ = 526988851200.

The previous prime is 1780474379897. The next prime is 1780474379923. The reversal of 1780474379904 is 4099734740871.

1780474379904 is a `hidden beast` number, since 1 + 7 + 8 + 0 + 474 + 3 + 79 + 90 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4722534 + ... + 5085594.

Almost surely, 2^{1780474379904} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1780474379904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2957401394640).

1780474379904 is an abundant number, since it is smaller than the sum of its proper divisors (4134328409376).

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

1780474379904 is a wasteful number, since it uses less digits than its factorization.

1780474379904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363141 (or 363120 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 63.

The spelling of 1780474379904 in words is "one trillion, seven hundred eighty billion, four hundred seventy-four million, three hundred seventy-nine thousand, nine hundred four".