546461548778 has 32 divisors (see below), whose sum is σ = 878399802000. Its totient is φ = 254482708480.

The previous prime is 546461548771. The next prime is 546461548823. The reversal of 546461548778 is 877845164645.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1266861649 + 545194687129 = 35593^2 + 738373^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (546461548771) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1079363 + ... + 1502646.

Almost surely, 2^546461548778 is an apocalyptic number.

546461548778 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

546461548778 is a deficient number, since it is larger than the sum of its proper divisors (331938253222).

546461548778 is a wasteful number, since it uses less digits than its factorization.

546461548778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2582170.

The product of its digits is 180633600, while the sum is 65.

The spelling of 546461548778 in words is "five hundred forty-six billion, four hundred sixty-one million, five hundred forty-eight thousand, seven hundred seventy-eight".