51343436463 has 16 divisors (see below), whose sum is σ = 74693684352. Its totient is φ = 31112100000.

The previous prime is 51343436437. The next prime is 51343436471. The reversal of 51343436463 is 36463434315.

It is not a de Polignac number, because 51343436463 - 2¹² = 51343432367 is a prime.

It is a super-2 number, since 2×51343436463² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51343436863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79713 + ... + 330213.

It is an arithmetic number, because the mean of its divisors is an integer number (4668355272).

Almost surely, 2^51343436463 is an apocalyptic number.

51343436463 is a deficient number, since it is larger than the sum of its proper divisors (23350247889).

51343436463 is a wasteful number, since it uses less digits than its factorization.

51343436463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256726.

The product of its digits is 933120, while the sum is 42.

The spelling of 51343436463 in words is "fifty-one billion, three hundred forty-three million, four hundred thirty-six thousand, four hundred sixty-three".