38433302638261 has 4 divisors (see below), whose sum is σ = 40694085146412. Its totient is φ = 36172520130112.

The previous prime is 38433302638253. The next prime is 38433302638327. The reversal of 38433302638261 is 16283620333483.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29532812048100 + 8900490590161 = 5434410^2 + 2983369^2 .

It is a cyclic number.

It is not a de Polignac number, because 38433302638261 - 2³ = 38433302638253 is a prime.

It is a super-2 number, since 2×38433302638261² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38433302638199 and 38433302638208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38433302635261) 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, 1130391254050 + ... + 1130391254083.

It is an arithmetic number, because the mean of its divisors is an integer number (10173521286603).

Almost surely, 2^{38433302638261} is an apocalyptic number.

It is an amenable number.

38433302638261 is a deficient number, since it is larger than the sum of its proper divisors (2260782508151).

38433302638261 is a wasteful number, since it uses less digits than its factorization.

38433302638261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260782508150.

The product of its (nonzero) digits is 8957952, while the sum is 52.

The spelling of 38433302638261 in words is "thirty-eight trillion, four hundred thirty-three billion, three hundred two million, six hundred thirty-eight thousand, two hundred sixty-one".