545991541490 has 16 divisors (see below), whose sum is σ = 982819028952. Its totient is φ = 218389004544.

The previous prime is 545991541471. The next prime is 545991541493. The reversal of 545991541490 is 94145199545.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 538725172441 + 7266369049 = 733979^2 + 85243^2 .

It is not an unprimeable number, because it can be changed into a prime (545991541493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645569 + ... + 1228308.

Almost surely, 2^545991541490 is an apocalyptic number.

545991541490 is a deficient number, since it is larger than the sum of its proper divisors (436827487462).

545991541490 is a wasteful number, since it uses less digits than its factorization.

545991541490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903021.

The product of its (nonzero) digits is 5832000, while the sum is 56.

The spelling of 545991541490 in words is "five hundred forty-five billion, nine hundred ninety-one million, five hundred forty-one thousand, four hundred ninety".