51549734151 has 40 divisors (see below), whose sum is σ = 82158881904. Its totient is φ = 32097911040.

The previous prime is 51549734143. The next prime is 51549734167. The reversal of 51549734151 is 15143794515.

51549734151 is a `hidden beast` number, since 5 + 1 + 5 + 497 + 3 + 4 + 151 = 666.

It is not a de Polignac number, because 51549734151 - 2³ = 51549734143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51549734097 and 51549734106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51549734191) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 37501 + ... + 323273.

Almost surely, 2^51549734151 is an apocalyptic number.

51549734151 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

51549734151 is a deficient number, since it is larger than the sum of its proper divisors (30609147753).

51549734151 is a wasteful number, since it uses less digits than its factorization.

51549734151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285933 (or 285924 counting only the distinct ones).

The product of its digits is 378000, while the sum is 45.

The spelling of 51549734151 in words is "fifty-one billion, five hundred forty-nine million, seven hundred thirty-four thousand, one hundred fifty-one".