612651306771 has 96 divisors (see below), whose sum is σ = 1080256020480. Its totient is φ = 326612708352.

The previous prime is 612651306769. The next prime is 612651306779. The reversal of 612651306771 is 177603156216.

612651306771 is a `hidden beast` number, since 6 + 1 + 2 + 6 + 513 + 0 + 67 + 71 = 666.

612651306771 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 612651306771 - 2¹ = 612651306769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (612651306779) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 57075721 + ... + 57086453.

It is an arithmetic number, because the mean of its divisors is an integer number (11252666880).

Almost surely, 2^612651306771 is an apocalyptic number.

612651306771 is a deficient number, since it is larger than the sum of its proper divisors (467604713709).

612651306771 is a wasteful number, since it uses less digits than its factorization.

612651306771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11225 (or 11222 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The spelling of 612651306771 in words is "six hundred twelve billion, six hundred fifty-one million, three hundred six thousand, seven hundred seventy-one".