3811538423466 has 32 divisors (see below), whose sum is σ = 8490300436800. Its totient is φ = 1267480550160.

The previous prime is 3811538423461. The next prime is 3811538423471. The reversal of 3811538423466 is 6643248351183.

3811538423466 is a `hidden beast` number, since 3 + 8 + 1 + 1 + 538 + 42 + 3 + 4 + 66 = 666.

It is an interprime number because it is at equal distance from previous prime (3811538423461) and next prime (3811538423471).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3811538423461) 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, 84206545 + ... + 84251796.

It is an arithmetic number, because the mean of its divisors is an integer number (265321888650).

Almost surely, 2^{3811538423466} is an apocalyptic number.

3811538423466 is an abundant number, since it is smaller than the sum of its proper divisors (4678762013334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3811538423466 is a wasteful number, since it uses less digits than its factorization.

3811538423466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168458771 (or 168458765 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 54.

The spelling of 3811538423466 in words is "three trillion, eight hundred eleven billion, five hundred thirty-eight million, four hundred twenty-three thousand, four hundred sixty-six".