238312633460811 has 32 divisors (see below), whose sum is σ = 391550028968448. Its totient is φ = 125551367746560.

The previous prime is 238312633460767. The next prime is 238312633460821. The reversal of 238312633460811 is 118064336213832.

It is a happy number.

It is not a de Polignac number, because 238312633460811 - 2²² = 238312629266507 is a prime.

It is a super-2 number, since 2×238312633460811² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (238312633460821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 527549350 + ... + 528000891.

It is an arithmetic number, because the mean of its divisors is an integer number (12235938405264).

Almost surely, 2^{238312633460811} is an apocalyptic number.

238312633460811 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

238312633460811 is a deficient number, since it is larger than the sum of its proper divisors (153237395507637).

238312633460811 is a wasteful number, since it uses less digits than its factorization.

238312633460811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055551091.

The product of its (nonzero) digits is 2985984, while the sum is 51.

The spelling of 238312633460811 in words is "two hundred thirty-eight trillion, three hundred twelve billion, six hundred thirty-three million, four hundred sixty thousand, eight hundred eleven".