1805948948736 has 81 divisors (see below), whose sum is σ = 5207182026501. Its totient is φ = 601961481216.

The previous prime is 1805948948719. The next prime is 1805948948743. The reversal of 1805948948736 is 6378498495081.

The square root of 1805948948736 is 1343856.

It is a perfect power (a square), and thus also a powerful number.

1805948948736 is a `hidden beast` number, since 18 + 0 + 59 + 4 + 89 + 487 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1693954310400 + 111994638336 = 1301520^2 + 334656^2 .

It is a super-2 number, since 2×1805948948736² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 64491090 + ... + 64519086.

Almost surely, 2^{1805948948736} is an apocalyptic number.

1805948948736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1805948948736 is the 1343856-th square number.

It is an amenable number.

1805948948736 is an abundant number, since it is smaller than the sum of its proper divisors (3401233077765).

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

1805948948736 is an frugal number, since it uses more digits than its factorization.

1805948948736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56016 (or 28002 counting only the distinct ones).

The product of its (nonzero) digits is 418037760, while the sum is 72.

The spelling of 1805948948736 in words is "one trillion, eight hundred five billion, nine hundred forty-eight million, nine hundred forty-eight thousand, seven hundred thirty-six".