38186154440661 has 8 divisors (see below), whose sum is σ = 50925838548960. Its totient is φ = 25451953313072.

The previous prime is 38186154440659. The next prime is 38186154440669. The reversal of 38186154440661 is 16604445168183.

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 38186154440661 - 2¹ = 38186154440659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38186154440669) 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, 1370728926 + ... + 1370756783.

It is an arithmetic number, because the mean of its divisors is an integer number (6365729818620).

Almost surely, 2^{38186154440661} is an apocalyptic number.

It is an amenable number.

38186154440661 is a deficient number, since it is larger than the sum of its proper divisors (12739684108299).

38186154440661 is a wasteful number, since it uses less digits than its factorization.

38186154440661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741490355.

The product of its (nonzero) digits is 13271040, while the sum is 57.

The spelling of 38186154440661 in words is "thirty-eight trillion, one hundred eighty-six billion, one hundred fifty-four million, four hundred forty thousand, six hundred sixty-one".