51436463415 has 64 divisors (see below), whose sum is σ = 87687360000. Its totient is φ = 25672896000.

The previous prime is 51436463413. The next prime is 51436463473.

It is a happy number.

51436463415 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51436463415 - 2¹ = 51436463413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51436463413) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14361925 + ... + 14365505.

It is an arithmetic number, because the mean of its divisors is an integer number (1370115000).

Almost surely, 2^51436463415 is an apocalyptic number.

51436463415 is a deficient number, since it is larger than the sum of its proper divisors (36250896585).

51436463415 is a wasteful number, since it uses less digits than its factorization.

51436463415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4208.

The product of its digits is 518400, while the sum is 42.

The spelling of 51436463415 in words is "fifty-one billion, four hundred thirty-six million, four hundred sixty-three thousand, four hundred fifteen".