540381126479 has 4 divisors (see below), whose sum is σ = 572168251584. Its totient is φ = 508594001376.

The previous prime is 540381126457. The next prime is 540381126517. The reversal of 540381126479 is 974621183045.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 540381126479 - 2²⁰ = 540380077903 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 (540381126419) 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, 15893562527 + ... + 15893562560.

It is an arithmetic number, because the mean of its divisors is an integer number (143042062896).

It is a 1-persistent number, because it is pandigital, but 2⋅540381126479 = 1080762252958 is not.

Almost surely, 2^540381126479 is an apocalyptic number.

540381126479 is a deficient number, since it is larger than the sum of its proper divisors (31787125105).

540381126479 is a wasteful number, since it uses less digits than its factorization.

540381126479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31787125104.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 540381126479 in words is "five hundred forty billion, three hundred eighty-one million, one hundred twenty-six thousand, four hundred seventy-nine".