38404237760813 has 8 divisors (see below), whose sum is σ = 39297525273600. Its totient is φ = 37510957780128.

The previous prime is 38404237760809. The next prime is 38404237760821. The reversal of 38404237760813 is 31806773240483.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38404237760813 - 2² = 38404237760809 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38404237760893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9180308 + ... + 12691986.

It is an arithmetic number, because the mean of its divisors is an integer number (4912190659200).

Almost surely, 2^{38404237760813} is an apocalyptic number.

It is an amenable number.

38404237760813 is a deficient number, since it is larger than the sum of its proper divisors (893287512787).

38404237760813 is a wasteful number, since it uses less digits than its factorization.

38404237760813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3766051.

The product of its (nonzero) digits is 16257024, while the sum is 56.

The spelling of 38404237760813 in words is "thirty-eight trillion, four hundred four billion, two hundred thirty-seven million, seven hundred sixty thousand, eight hundred thirteen".