38871544481923 has 2 divisors, whose sum is σ = 38871544481924. Its totient is φ = 38871544481922.

The previous prime is 38871544481897. The next prime is 38871544481953. The reversal of 38871544481923 is 32918444517883.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 38871544481923 - 2¹³ = 38871544473731 is a prime.

It is not a weakly prime, because it can be changed into another prime (38871544481953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19435772240961 + 19435772240962.

It is an arithmetic number, because the mean of its divisors is an integer number (19435772240962).

Almost surely, 2^{38871544481923} is an apocalyptic number.

38871544481923 is a deficient number, since it is larger than the sum of its proper divisors (1).

38871544481923 is an equidigital number, since it uses as much as digits as its factorization.

38871544481923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 185794560, while the sum is 67.

The spelling of 38871544481923 in words is "thirty-eight trillion, eight hundred seventy-one billion, five hundred forty-four million, four hundred eighty-one thousand, nine hundred twenty-three".