51420170203411 has 4 divisors (see below), whose sum is σ = 53193279520800. Its totient is φ = 49647060886024.

The previous prime is 51420170203387. The next prime is 51420170203459. The reversal of 51420170203411 is 11430207102415.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51420170203411 - 2⁵ = 51420170203379 is a prime.

It is a super-2 number, since 2×51420170203411² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51420170203481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 886554658651 + ... + 886554658708.

It is an arithmetic number, because the mean of its divisors is an integer number (13298319880200).

Almost surely, 2^{51420170203411} is an apocalyptic number.

51420170203411 is a deficient number, since it is larger than the sum of its proper divisors (1773109317389).

51420170203411 is a wasteful number, since it uses less digits than its factorization.

51420170203411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773109317388.

The product of its (nonzero) digits is 6720, while the sum is 31.

Adding to 51420170203411 its reverse (11430207102415), we get a palindrome (62850377305826).

The spelling of 51420170203411 in words is "fifty-one trillion, four hundred twenty billion, one hundred seventy million, two hundred three thousand, four hundred eleven".