551686707963 has 12 divisors (see below), whose sum is σ = 815412912600. Its totient is φ = 359237856096.

The previous prime is 551686707919. The next prime is 551686707967. The reversal of 551686707963 is 369707686155.

551686707963 is a `hidden beast` number, since 551 + 6 + 8 + 6 + 7 + 0 + 79 + 6 + 3 = 666.

551686707963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 551686707963 - 2¹³ = 551686699771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 551686707963.

It is not an unprimeable number, because it can be changed into a prime (551686707967) 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, 712773138 + ... + 712773911.

It is an arithmetic number, because the mean of its divisors is an integer number (67951076050).

Almost surely, 2^551686707963 is an apocalyptic number.

551686707963 is a deficient number, since it is larger than the sum of its proper divisors (263726204637).

551686707963 is a wasteful number, since it uses less digits than its factorization.

551686707963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425547098 (or 1425547095 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 63.

The spelling of 551686707963 in words is "five hundred fifty-one billion, six hundred eighty-six million, seven hundred seven thousand, nine hundred sixty-three".