4651936206397 has 2 divisors, whose sum is σ = 4651936206398. Its totient is φ = 4651936206396.

The previous prime is 4651936206391. The next prime is 4651936206431. The reversal of 4651936206397 is 7936026391564.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3767407242361 + 884528964036 = 1940981^2 + 940494^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4651936206397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4651936206391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2325968103198 + 2325968103199.

It is an arithmetic number, because the mean of its divisors is an integer number (2325968103199).

Almost surely, 2^{4651936206397} is an apocalyptic number.

It is an amenable number.

4651936206397 is a deficient number, since it is larger than the sum of its proper divisors (1).

4651936206397 is an equidigital number, since it uses as much as digits as its factorization.

4651936206397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 44089920, while the sum is 61.

The spelling of 4651936206397 in words is "four trillion, six hundred fifty-one billion, nine hundred thirty-six million, two hundred six thousand, three hundred ninety-seven".