3856340568551 has 2 divisors, whose sum is σ = 3856340568552. Its totient is φ = 3856340568550.

The previous prime is 3856340568499. The next prime is 3856340568593. The reversal of 3856340568551 is 1558650436583.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3856340568551 - 2¹⁸ = 3856340306407 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3856340568851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1928170284275 + 1928170284276.

It is an arithmetic number, because the mean of its divisors is an integer number (1928170284276).

Almost surely, 2^{3856340568551} is an apocalyptic number.

3856340568551 is a deficient number, since it is larger than the sum of its proper divisors (1).

3856340568551 is an equidigital number, since it uses as much as digits as its factorization.

3856340568551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840000, while the sum is 59.

The spelling of 3856340568551 in words is "three trillion, eight hundred fifty-six billion, three hundred forty million, five hundred sixty-eight thousand, five hundred fifty-one".