551928493678 has 4 divisors (see below), whose sum is σ = 827892740520. Its totient is φ = 275964246838.

The previous prime is 551928493591. The next prime is 551928493717. The reversal of 551928493678 is 876394829155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 876394829155 = 5 ⋅175278965831.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137982123418 + ... + 137982123421.

It is an arithmetic number, because the mean of its divisors is an integer number (206973185130).

Almost surely, 2^551928493678 is an apocalyptic number.

551928493678 is a deficient number, since it is larger than the sum of its proper divisors (275964246842).

551928493678 is a wasteful number, since it uses less digits than its factorization.

551928493678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275964246841.

The product of its digits is 130636800, while the sum is 67.

The spelling of 551928493678 in words is "five hundred fifty-one billion, nine hundred twenty-eight million, four hundred ninety-three thousand, six hundred seventy-eight".