51714777641 has 4 divisors (see below), whose sum is σ = 53112474372. Its totient is φ = 50317080912.

The previous prime is 51714777629. The next prime is 51714777643. The reversal of 51714777641 is 14677741715.

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 24367210000 + 27347567641 = 156100^2 + 165371^2 .

It is a cyclic number.

It is not a de Polignac number, because 51714777641 - 2⁶ = 51714777577 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51714777641.

It is not an unprimeable number, because it can be changed into a prime (51714777643) 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, 698848310 + ... + 698848383.

It is an arithmetic number, because the mean of its divisors is an integer number (13278118593).

Almost surely, 2^51714777641 is an apocalyptic number.

It is an amenable number.

51714777641 is a deficient number, since it is larger than the sum of its proper divisors (1397696731).

51714777641 is a wasteful number, since it uses less digits than its factorization.

51714777641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397696730.

The product of its digits is 1152480, while the sum is 50.

The spelling of 51714777641 in words is "fifty-one billion, seven hundred fourteen million, seven hundred seventy-seven thousand, six hundred forty-one".