123454545577 has 8 divisors (see below), whose sum is σ = 134694375552. Its totient is φ = 112217497200.

The previous prime is 123454545523. The next prime is 123454545583. The reversal of 123454545577 is 775545454321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123454545577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123454545517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602049 + ... + 780622.

It is an arithmetic number, because the mean of its divisors is an integer number (16836796944).

Almost surely, 2^123454545577 is an apocalyptic number.

It is an amenable number.

123454545577 is a deficient number, since it is larger than the sum of its proper divisors (11239829975).

123454545577 is a wasteful number, since it uses less digits than its factorization.

123454545577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390799.

The product of its digits is 11760000, while the sum is 52.

Adding to 123454545577 its reverse (775545454321), we get a palindrome (898999999898).

The spelling of 123454545577 in words is "one hundred twenty-three billion, four hundred fifty-four million, five hundred forty-five thousand, five hundred seventy-seven".