38036661453919 has 16 divisors (see below), whose sum is σ = 38753574092800. Its totient is φ = 37325062906560.

The previous prime is 38036661453911. The next prime is 38036661453949. The reversal of 38036661453919 is 91935416663083.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 38036661453919 - 2³ = 38036661453911 is a prime.

It is a super-2 number, since 2×38036661453919² (a number of 28 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 (38036661453911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315567874 + ... + 315688384.

It is an arithmetic number, because the mean of its divisors is an integer number (2422098380800).

Almost surely, 2^{38036661453919} is an apocalyptic number.

38036661453919 is the 3560743-rd hex number.

38036661453919 is a deficient number, since it is larger than the sum of its proper divisors (716912638881).

38036661453919 is a wasteful number, since it uses less digits than its factorization.

38036661453919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142510.

The product of its (nonzero) digits is 75582720, while the sum is 64.

The spelling of 38036661453919 in words is "thirty-eight trillion, thirty-six billion, six hundred sixty-one million, four hundred fifty-three thousand, nine hundred nineteen".