545451240511 has 4 divisors (see below), whose sum is σ = 548925452392. Its totient is φ = 541977028632.

The previous prime is 545451240493. The next prime is 545451240541. The reversal of 545451240511 is 115042154545.

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 545451240511 - 2⁹ = 545451239999 is a prime.

It is a super-2 number, since 2×545451240511² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545451240541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1737105705 + ... + 1737106018.

It is an arithmetic number, because the mean of its divisors is an integer number (137231363098).

Almost surely, 2^545451240511 is an apocalyptic number.

545451240511 is a deficient number, since it is larger than the sum of its proper divisors (3474211881).

545451240511 is a wasteful number, since it uses less digits than its factorization.

545451240511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3474211880.

The product of its (nonzero) digits is 80000, while the sum is 37.

The spelling of 545451240511 in words is "five hundred forty-five billion, four hundred fifty-one million, two hundred forty thousand, five hundred eleven".