545117678 has 8 divisors (see below), whose sum is σ = 934487472. Its totient is φ = 233621856.

The previous prime is 545117647. The next prime is 545117681. The reversal of 545117678 is 876711545.

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

It is a super-2 number, since 2×545117678² = 594306565736223368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19468475 + ... + 19468502.

It is an arithmetic number, because the mean of its divisors is an integer number (116810934).

Almost surely, 2^545117678 is an apocalyptic number.

545117678 is a deficient number, since it is larger than the sum of its proper divisors (389369794).

545117678 is a wasteful number, since it uses less digits than its factorization.

545117678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38936986.

The product of its digits is 235200, while the sum is 44.

The square root of 545117678 is about 23347.7553096652. The cubic root of 545117678 is about 816.8897036427.

The spelling of 545117678 in words is "five hundred forty-five million, one hundred seventeen thousand, six hundred seventy-eight".