1051623587173 has 2 divisors, whose sum is σ = 1051623587174. Its totient is φ = 1051623587172.

The previous prime is 1051623587141. The next prime is 1051623587197. The reversal of 1051623587173 is 3717853261501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1051623587169 + 4 = 1025487^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051623587173 - 2⁵ = 1051623587141 is a prime.

It is a super-2 number, since 2×1051623587173² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051623887173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525811793586 + 525811793587.

It is an arithmetic number, because the mean of its divisors is an integer number (525811793587).

Almost surely, 2^{1051623587173} is an apocalyptic number.

It is an amenable number.

1051623587173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051623587173 is an equidigital number, since it uses as much as digits as its factorization.

1051623587173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1058400, while the sum is 49.

The spelling of 1051623587173 in words is "one trillion, fifty-one billion, six hundred twenty-three million, five hundred eighty-seven thousand, one hundred seventy-three".