51464311002 has 48 divisors (see below), whose sum is σ = 120102248448. Its totient is φ = 15832686240.

The previous prime is 51464311001. The next prime is 51464311007. The reversal of 51464311002 is 20011346415.

It is a happy number.

51464311002 is a `hidden beast` number, since 5 + 1 + 4 + 643 + 1 + 10 + 0 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (51464311001) 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 23 ways as a sum of consecutive naturals, for example, 1957927 + ... + 1984037.

It is an arithmetic number, because the mean of its divisors is an integer number (2502130176).

Almost surely, 2^51464311002 is an apocalyptic number.

51464311002 is an abundant number, since it is smaller than the sum of its proper divisors (68637937446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51464311002 is a wasteful number, since it uses less digits than its factorization.

51464311002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34555 (or 34552 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 51464311002 its reverse (20011346415), we get a palindrome (71475657417).

The spelling of 51464311002 in words is "fifty-one billion, four hundred sixty-four million, three hundred eleven thousand, two".