51361171677 has 12 divisors (see below), whose sum is σ = 74207340480. Its totient is φ = 34232020488.

The previous prime is 51361171663. The next prime is 51361171691. The reversal of 51361171677 is 77617116315.

51361171677 is a `hidden beast` number, since 5 + 13 + 611 + 7 + 16 + 7 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (51361171663) and next prime (51361171691).

It is not a de Polignac number, because 51361171677 - 2¹⁸ = 51360909533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51361171657) 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, 692823 + ... + 763364.

It is an arithmetic number, because the mean of its divisors is an integer number (6183945040).

Almost surely, 2^51361171677 is an apocalyptic number.

It is an amenable number.

51361171677 is a deficient number, since it is larger than the sum of its proper divisors (22846168803).

51361171677 is a wasteful number, since it uses less digits than its factorization.

51361171677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460112 (or 1460109 counting only the distinct ones).

The product of its digits is 185220, while the sum is 45.

The spelling of 51361171677 in words is "fifty-one billion, three hundred sixty-one million, one hundred seventy-one thousand, six hundred seventy-seven".