51215013000430 has 16 divisors (see below), whose sum is σ = 92192697090000. Its totient is φ = 20484744380352.

The previous prime is 51215013000379. The next prime is 51215013000457. The reversal of 51215013000430 is 3400031051215.

It is a happy number.

51215013000430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51215013000430² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51215013000395 and 51215013000404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157431864 + ... + 157756843.

It is an arithmetic number, because the mean of its divisors is an integer number (5762043568125).

Almost surely, 2^{51215013000430} is an apocalyptic number.

51215013000430 is a deficient number, since it is larger than the sum of its proper divisors (40977684089570).

51215013000430 is a wasteful number, since it uses less digits than its factorization.

51215013000430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315204963.

The product of its (nonzero) digits is 1800, while the sum is 25.

Adding to 51215013000430 its reverse (3400031051215), we get a palindrome (54615044051645).

The spelling of 51215013000430 in words is "fifty-one trillion, two hundred fifteen billion, thirteen million, four hundred thirty", and thus it is an aban number.