38440418351 has 4 divisors (see below), whose sum is σ = 40111740912. Its totient is φ = 36769095792.

The previous prime is 38440418299. The next prime is 38440418363. The reversal of 38440418351 is 15381404483.

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

It is a cyclic number.

It is not a de Polignac number, because 38440418351 - 2³⁰ = 37366676527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38440418299 and 38440418308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38440418851) 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, 835661246 + ... + 835661291.

It is an arithmetic number, because the mean of its divisors is an integer number (10027935228).

Almost surely, 2^38440418351 is an apocalyptic number.

38440418351 is a deficient number, since it is larger than the sum of its proper divisors (1671322561).

38440418351 is a wasteful number, since it uses less digits than its factorization.

38440418351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671322560.

The product of its (nonzero) digits is 184320, while the sum is 41.

The spelling of 38440418351 in words is "thirty-eight billion, four hundred forty million, four hundred eighteen thousand, three hundred fifty-one".