8628779951 has 12 divisors (see below), whose sum is σ = 9487016616. Its totient is φ = 7842286320.

The previous prime is 8628779917. The next prime is 8628779963. The reversal of 8628779951 is 1599778268.

It is not a de Polignac number, because 8628779951 - 2²² = 8624585647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8628779911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 637385 + ... + 650781.

It is an arithmetic number, because the mean of its divisors is an integer number (790584718).

Almost surely, 2^8628779951 is an apocalyptic number.

8628779951 is a deficient number, since it is larger than the sum of its proper divisors (858236665).

8628779951 is a wasteful number, since it uses less digits than its factorization.

8628779951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18742 (or 18731 counting only the distinct ones).

The product of its digits is 15240960, while the sum is 62.

The square root of 8628779951 is about 92891.2264479267. The cubic root of 8628779951 is about 2051.0825098546.

The spelling of 8628779951 in words is "eight billion, six hundred twenty-eight million, seven hundred seventy-nine thousand, nine hundred fifty-one".