5401815911 has 4 divisors (see below), whose sum is σ = 5402373024. Its totient is φ = 5401258800.

The previous prime is 5401815893. The next prime is 5401815917. The reversal of 5401815911 is 1195181045.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5401815911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5401815917) 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, 263750 + ... + 283491.

It is an arithmetic number, because the mean of its divisors is an integer number (1350593256).

Almost surely, 2^5401815911 is an apocalyptic number.

5401815911 is a deficient number, since it is larger than the sum of its proper divisors (557113).

5401815911 is an equidigital number, since it uses as much as digits as its factorization.

5401815911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557112.

The product of its (nonzero) digits is 7200, while the sum is 35.

The square root of 5401815911 is about 73497.0469542825. The cubic root of 5401815911 is about 1754.6072785165.

Adding to 5401815911 its reverse (1195181045), we get a palindrome (6596996956).

The spelling of 5401815911 in words is "five billion, four hundred one million, eight hundred fifteen thousand, nine hundred eleven".