152638877705 has 4 divisors (see below), whose sum is σ = 183166653252. Its totient is φ = 122111102160.

The previous prime is 152638877681. The next prime is 152638877711. The reversal of 152638877705 is 507778836251.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 507778836251 = 347773 ⋅1460087.

It can be written as a sum of positive squares in 2 ways, for example, as 35831461264 + 116807416441 = 189292^2 + 341771^2 .

It is a de Polignac number, because none of the positive numbers 2^k-152638877705 is a prime.

It is a super-4 number, since 4×152638877705⁴ (a number of 46 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15263887766 + ... + 15263887775.

It is an arithmetic number, because the mean of its divisors is an integer number (45791663313).

Almost surely, 2^152638877705 is an apocalyptic number.

It is an amenable number.

152638877705 is a deficient number, since it is larger than the sum of its proper divisors (30527775547).

152638877705 is an equidigital number, since it uses as much as digits as its factorization.

152638877705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30527775546.

The product of its (nonzero) digits is 19756800, while the sum is 59.

The spelling of 152638877705 in words is "one hundred fifty-two billion, six hundred thirty-eight million, eight hundred seventy-seven thousand, seven hundred five".