51435132204 has 72 divisors (see below), whose sum is σ = 129027060288. Its totient is φ = 15942007040.

The previous prime is 51435132197. The next prime is 51435132211. The reversal of 51435132204 is 40223153415.

It is an interprime number because it is at equal distance from previous prime (51435132197) and next prime (51435132211).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 198499 + ... + 377189.

It is an arithmetic number, because the mean of its divisors is an integer number (1792042504).

Almost surely, 2^51435132204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51435132204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64513530144).

51435132204 is an abundant number, since it is smaller than the sum of its proper divisors (77591928084).

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

51435132204 is a wasteful number, since it uses less digits than its factorization.

51435132204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178815 (or 178796 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 51435132204 its reverse (40223153415), we get a palindrome (91658285619).

The spelling of 51435132204 in words is "fifty-one billion, four hundred thirty-five million, one hundred thirty-two thousand, two hundred four".