238673261907 has 32 divisors (see below), whose sum is σ = 356700072960. Its totient is φ = 157718789280.

The previous prime is 238673261899. The next prime is 238673261917. The reversal of 238673261907 is 709162376832.

238673261907 is a `hidden beast` number, since 2 + 386 + 73 + 2 + 6 + 190 + 7 = 666.

238673261907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 238673261907 - 2³ = 238673261899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (238673261917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3063478 + ... + 3140420.

It is an arithmetic number, because the mean of its divisors is an integer number (11146877280).

Almost surely, 2^238673261907 is an apocalyptic number.

238673261907 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

238673261907 is a deficient number, since it is larger than the sum of its proper divisors (118026811053).

238673261907 is a wasteful number, since it uses less digits than its factorization.

238673261907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77960 (or 77954 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 238673261907 in words is "two hundred thirty-eight billion, six hundred seventy-three million, two hundred sixty-one thousand, nine hundred seven".