5401440673 has 4 divisors (see below), whose sum is σ = 5410802500. Its totient is φ = 5392078848.

The previous prime is 5401440647. The next prime is 5401440677. The reversal of 5401440673 is 3760441045.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5351215104 + 50225569 = 73152^2 + 7087^2 .

It is not a de Polignac number, because 5401440673 - 2⁵ = 5401440641 is a prime.

It is a super-2 number, since 2×5401440673² = 58351122687877385858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5401440677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4680048 + ... + 4681201.

It is an arithmetic number, because the mean of its divisors is an integer number (1352700625).

Almost surely, 2^5401440673 is an apocalyptic number.

It is an amenable number.

5401440673 is a deficient number, since it is larger than the sum of its proper divisors (9361827).

5401440673 is an equidigital number, since it uses as much as digits as its factorization.

5401440673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9361826.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 5401440673 is about 73494.4941679307. The cubic root of 5401440673 is about 1754.5666495514.

The spelling of 5401440673 in words is "five billion, four hundred one million, four hundred forty thousand, six hundred seventy-three".