1623149177147 has 2 divisors, whose sum is σ = 1623149177148. Its totient is φ = 1623149177146.

The previous prime is 1623149177141. The next prime is 1623149177201. The reversal of 1623149177147 is 7417719413261.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1623149177147 - 2¹⁰ = 1623149176123 is a prime.

It is a super-2 number, since 2×1623149177147² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1623149177141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811574588573 + 811574588574.

It is an arithmetic number, because the mean of its divisors is an integer number (811574588574).

Almost surely, 2^{1623149177147} is an apocalyptic number.

1623149177147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1623149177147 is an equidigital number, since it uses as much as digits as its factorization.

1623149177147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1778112, while the sum is 53.

The spelling of 1623149177147 in words is "one trillion, six hundred twenty-three billion, one hundred forty-nine million, one hundred seventy-seven thousand, one hundred forty-seven".