51431413045 has 4 divisors (see below), whose sum is σ = 61717695660. Its totient is φ = 41145130432.

The previous prime is 51431413031. The next prime is 51431413049. The reversal of 51431413045 is 54031413415.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39035485476 + 12395927569 = 197574^2 + 111337^2 .

It is a cyclic number.

It is not a de Polignac number, because 51431413045 - 2⁵ = 51431413013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51431412998 and 51431413016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51431413049) 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, 5143141300 + ... + 5143141309.

It is an arithmetic number, because the mean of its divisors is an integer number (15429423915).

Almost surely, 2^51431413045 is an apocalyptic number.

It is an amenable number.

51431413045 is a deficient number, since it is larger than the sum of its proper divisors (10286282615).

51431413045 is a wasteful number, since it uses less digits than its factorization.

51431413045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10286282614.

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 51431413045 in words is "fifty-one billion, four hundred thirty-one million, four hundred thirteen thousand, forty-five".