3811038365401 has 4 divisors (see below), whose sum is σ = 3814413954100. Its totient is φ = 3807662776704.

The previous prime is 3811038365339. The next prime is 3811038365429. The reversal of 3811038365401 is 1045638301183.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 954519230025 + 2856519135376 = 976995^2 + 1690124^2 .

It is a cyclic number.

It is not a de Polignac number, because 3811038365401 - 2²⁵ = 3811004810969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3811038365201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1687792656 + ... + 1687794913.

It is an arithmetic number, because the mean of its divisors is an integer number (953603488525).

Almost surely, 2^{3811038365401} is an apocalyptic number.

It is an amenable number.

3811038365401 is a deficient number, since it is larger than the sum of its proper divisors (3375588699).

3811038365401 is a wasteful number, since it uses less digits than its factorization.

3811038365401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3375588698.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 3811038365401 in words is "three trillion, eight hundred eleven billion, thirty-eight million, three hundred sixty-five thousand, four hundred one".