538917704551 has 2 divisors, whose sum is σ = 538917704552. Its totient is φ = 538917704550.

The previous prime is 538917704491. The next prime is 538917704621. The reversal of 538917704551 is 155407719835.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 538917704551 - 2¹¹ = 538917702503 is a prime.

It is a super-2 number, since 2×538917704551² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 538917704492 and 538917704501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538917404551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269458852275 + 269458852276.

It is an arithmetic number, because the mean of its divisors is an integer number (269458852276).

Almost surely, 2^538917704551 is an apocalyptic number.

538917704551 is a deficient number, since it is larger than the sum of its proper divisors (1).

538917704551 is an equidigital number, since it uses as much as digits as its factorization.

538917704551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292000, while the sum is 55.

The spelling of 538917704551 in words is "five hundred thirty-eight billion, nine hundred seventeen million, seven hundred four thousand, five hundred fifty-one".