545448691864 has 8 divisors (see below), whose sum is σ = 1022716297260. Its totient is φ = 272724345928.

The previous prime is 545448691861. The next prime is 545448691877. The reversal of 545448691864 is 468196844545.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×545448691864² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 545448691796 and 545448691805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545448691861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34090543234 + ... + 34090543249.

Almost surely, 2^545448691864 is an apocalyptic number.

It is an amenable number.

545448691864 is a deficient number, since it is larger than the sum of its proper divisors (477267605396).

545448691864 is a wasteful number, since it uses less digits than its factorization.

545448691864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68181086489 (or 68181086485 counting only the distinct ones).

The product of its digits is 132710400, while the sum is 64.

The spelling of 545448691864 in words is "five hundred forty-five billion, four hundred forty-eight million, six hundred ninety-one thousand, eight hundred sixty-four".