5409980785 has 12 divisors (see below), whose sum is σ = 7135810164. Its totient is φ = 3934531040.

The previous prime is 5409980699. The next prime is 5409980893. The reversal of 5409980785 is 5870899045.

It can be written as a sum of positive squares in 2 ways, for example, as 4085894241 + 1324086544 = 63921^2 + 36388^2 .

It is not a de Polignac number, because 5409980785 - 2⁷ = 5409980657 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4470454 + ... + 4471663.

It is an arithmetic number, because the mean of its divisors is an integer number (594650847).

Almost surely, 2^5409980785 is an apocalyptic number.

5409980785 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5409980785 is a deficient number, since it is larger than the sum of its proper divisors (1725829379).

5409980785 is a wasteful number, since it uses less digits than its factorization.

5409980785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8942144 (or 8942133 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 55.

The square root of 5409980785 is about 73552.5715729912. The cubic root of 5409980785 is about 1755.4908662843.

The spelling of 5409980785 in words is "five billion, four hundred nine million, nine hundred eighty thousand, seven hundred eighty-five".