51423662152 has 8 divisors (see below), whose sum is σ = 96419366550. Its totient is φ = 25711831072.

The previous prime is 51423662149. The next prime is 51423662167. The reversal of 51423662152 is 25126632415.

It can be written as a sum of positive squares in only one way, i.e., 41613552036 + 9810110116 = 203994^2 + 99046^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×51423662152² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3213978877 + ... + 3213978892.

Almost surely, 2^51423662152 is an apocalyptic number.

It is an amenable number.

51423662152 is a deficient number, since it is larger than the sum of its proper divisors (44995704398).

51423662152 is a wasteful number, since it uses less digits than its factorization.

51423662152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6427957775 (or 6427957771 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

The spelling of 51423662152 in words is "fifty-one billion, four hundred twenty-three million, six hundred sixty-two thousand, one hundred fifty-two".