38401123781867 has 32 divisors (see below), whose sum is σ = 50408181895680. Its totient is φ = 28341520289280.

The previous prime is 38401123781827. The next prime is 38401123781899. The reversal of 38401123781867 is 76818732110483.

It is a happy number.

It is not a de Polignac number, because 38401123781867 - 2⁸ = 38401123781611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38401123781827) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3318953 + ... + 9371109.

It is an arithmetic number, because the mean of its divisors is an integer number (1575255684240).

Almost surely, 2^{38401123781867} is an apocalyptic number.

38401123781867 is a deficient number, since it is larger than the sum of its proper divisors (12007058113813).

38401123781867 is a wasteful number, since it uses less digits than its factorization.

38401123781867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6056531.

The product of its (nonzero) digits is 10838016, while the sum is 59.

The spelling of 38401123781867 in words is "thirty-eight trillion, four hundred one billion, one hundred twenty-three million, seven hundred eighty-one thousand, eight hundred sixty-seven".