3887326723465 has 16 divisors (see below), whose sum is σ = 4830841587600. Its totient is φ = 2999392571392.

The previous prime is 3887326723459. The next prime is 3887326723477. The reversal of 3887326723465 is 5643276237883.

It can be written as a sum of positive squares in 8 ways, for example, as 785529462601 + 3101797260864 = 886301^2 + 1761192^2 .

It is not a de Polignac number, because 3887326723465 - 2¹⁵ = 3887326690697 is a prime.

It is a super-2 number, since 2×3887326723465² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3887326723397 and 3887326723406.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14294332 + ... + 14563741.

It is an arithmetic number, because the mean of its divisors is an integer number (301927599225).

Almost surely, 2^{3887326723465} is an apocalyptic number.

It is an amenable number.

3887326723465 is a deficient number, since it is larger than the sum of its proper divisors (943514864135).

3887326723465 is a wasteful number, since it uses less digits than its factorization.

3887326723465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28859036.

The product of its digits is 243855360, while the sum is 64.

The spelling of 3887326723465 in words is "three trillion, eight hundred eighty-seven billion, three hundred twenty-six million, seven hundred twenty-three thousand, four hundred sixty-five".