51514380369 has 24 divisors (see below), whose sum is σ = 75842002080. Its totient is φ = 33684473472.

The previous prime is 51514380329. The next prime is 51514380397. The reversal of 51514380369 is 96308341515.

51514380369 is a `hidden beast` number, since 5 + 151 + 438 + 0 + 3 + 69 = 666.

It is not a de Polignac number, because 51514380369 - 2¹³ = 51514372177 is a prime.

It is a super-2 number, since 2×51514380369² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51514380329) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 125737 + ... + 344729.

It is an arithmetic number, because the mean of its divisors is an integer number (3160083420).

Almost surely, 2^51514380369 is an apocalyptic number.

51514380369 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

51514380369 is a deficient number, since it is larger than the sum of its proper divisors (24327621711).

51514380369 is a wasteful number, since it uses less digits than its factorization.

51514380369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219501 (or 219498 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The spelling of 51514380369 in words is "fifty-one billion, five hundred fourteen million, three hundred eighty thousand, three hundred sixty-nine".