51114013961 has 4 divisors (see below), whose sum is σ = 51132330624. Its totient is φ = 51095697300.

The previous prime is 51114013949. The next prime is 51114013963. The reversal of 51114013961 is 16931041115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51114013961 - 2¹⁴ = 51113997577 is a prime.

It is a super-2 number, since 2×51114013961² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51114013963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9154145 + ... + 9159726.

It is an arithmetic number, because the mean of its divisors is an integer number (12783082656).

Almost surely, 2^51114013961 is an apocalyptic number.

It is an amenable number.

51114013961 is a deficient number, since it is larger than the sum of its proper divisors (18316663).

51114013961 is a wasteful number, since it uses less digits than its factorization.

51114013961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18316662.

The product of its (nonzero) digits is 3240, while the sum is 32.

The spelling of 51114013961 in words is "fifty-one billion, one hundred fourteen million, thirteen thousand, nine hundred sixty-one".