34528862381 has 4 divisors (see below), whose sum is σ = 37184928732. Its totient is φ = 31872796032.

The previous prime is 34528862377. The next prime is 34528862399. The reversal of 34528862381 is 18326882543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18326882543 = 29 ⋅631961467.

It can be written as a sum of positive squares in 2 ways, for example, as 20360721481 + 14168140900 = 142691^2 + 119030^2 .

It is a cyclic number.

It is not a de Polignac number, because 34528862381 - 2² = 34528862377 is a prime.

It is a super-2 number, since 2×34528862381² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34528862311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1328033156 + ... + 1328033181.

It is an arithmetic number, because the mean of its divisors is an integer number (9296232183).

Almost surely, 2^34528862381 is an apocalyptic number.

It is an amenable number.

34528862381 is a deficient number, since it is larger than the sum of its proper divisors (2656066351).

34528862381 is a wasteful number, since it uses less digits than its factorization.

34528862381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656066350.

The product of its digits is 2211840, while the sum is 50.

The spelling of 34528862381 in words is "thirty-four billion, five hundred twenty-eight million, eight hundred sixty-two thousand, three hundred eighty-one".