51321402411 has 8 divisors (see below), whose sum is σ = 68432306064. Its totient is φ = 34212383520.

The previous prime is 51321402403. The next prime is 51321402467. The reversal of 51321402411 is 11420412315.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 51321402411 - 2³ = 51321402403 is a prime.

It is a super-2 number, since 2×51321402411² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51321402311) by changing a digit.

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, 406380 + ... + 517481.

It is an arithmetic number, because the mean of its divisors is an integer number (8554038258).

Almost surely, 2^51321402411 is an apocalyptic number.

51321402411 is a deficient number, since it is larger than the sum of its proper divisors (17110903653).

51321402411 is a wasteful number, since it uses less digits than its factorization.

51321402411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942381.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 51321402411 its reverse (11420412315), we get a palindrome (62741814726).

The spelling of 51321402411 in words is "fifty-one billion, three hundred twenty-one million, four hundred two thousand, four hundred eleven".