238902172079 has 8 divisors (see below), whose sum is σ = 239568840720. Its totient is φ = 238236356736.

The previous prime is 238902172027. The next prime is 238902172121. The reversal of 238902172079 is 970271209832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 238902172079 - 2¹² = 238902167983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238902178079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349472 + ... + 774554.

It is an arithmetic number, because the mean of its divisors is an integer number (29946105090).

Almost surely, 2^238902172079 is an apocalyptic number.

238902172079 is a deficient number, since it is larger than the sum of its proper divisors (666668641).

238902172079 is a wasteful number, since it uses less digits than its factorization.

238902172079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426649.

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 238902172079 in words is "two hundred thirty-eight billion, nine hundred two million, one hundred seventy-two thousand, seventy-nine".