38923503901 has 2 divisors, whose sum is σ = 38923503902. Its totient is φ = 38923503900.

The previous prime is 38923503833. The next prime is 38923503929. The reversal of 38923503901 is 10930532983.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33315740676 + 5607763225 = 182526^2 + 74885^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38923503901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38923503961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19461751950 + 19461751951.

It is an arithmetic number, because the mean of its divisors is an integer number (19461751951).

Almost surely, 2^38923503901 is an apocalyptic number.

It is an amenable number.

38923503901 is a deficient number, since it is larger than the sum of its proper divisors (1).

38923503901 is an equidigital number, since it uses as much as digits as its factorization.

38923503901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 43.

The spelling of 38923503901 in words is "thirty-eight billion, nine hundred twenty-three million, five hundred three thousand, nine hundred one".