54577788777546 has 32 divisors (see below), whose sum is σ = 109636251865920. Its totient is φ = 18112654874496.

The previous prime is 54577788777469. The next prime is 54577788777557. The reversal of 54577788777546 is 64577788777545.

It is a happy number.

It is a super-2 number, since 2×54577788777546² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20097891 + ... + 22651286.

It is an arithmetic number, because the mean of its divisors is an integer number (3426132870810).

Almost surely, 2^{54577788777546} is an apocalyptic number.

54577788777546 is an abundant number, since it is smaller than the sum of its proper divisors (55058463088374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54577788777546 is a wasteful number, since it uses less digits than its factorization.

54577788777546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42750118.

The product of its digits is 90354432000, while the sum is 87.

Subtracting 54577788777546 from its reverse (64577788777545), we obtain a palindrome (9999999999999).

The spelling of 54577788777546 in words is "fifty-four trillion, five hundred seventy-seven billion, seven hundred eighty-eight million, seven hundred seventy-seven thousand, five hundred forty-six".