650781552427 has 2 divisors, whose sum is σ = 650781552428. Its totient is φ = 650781552426.

The previous prime is 650781552383. The next prime is 650781552467. The reversal of 650781552427 is 724255187056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 650781552427 - 2¹¹ = 650781550379 is a prime.

It is a super-2 number, since 2×650781552427² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (650781552467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325390776213 + 325390776214.

It is an arithmetic number, because the mean of its divisors is an integer number (325390776214).

Almost surely, 2^650781552427 is an apocalyptic number.

650781552427 is a deficient number, since it is larger than the sum of its proper divisors (1).

650781552427 is an equidigital number, since it uses as much as digits as its factorization.

650781552427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704000, while the sum is 52.

The spelling of 650781552427 in words is "six hundred fifty billion, seven hundred eighty-one million, five hundred fifty-two thousand, four hundred twenty-seven".