238031793261 has 32 divisors (see below), whose sum is σ = 375026556800. Its totient is φ = 148785984000.

The previous prime is 238031793253. The next prime is 238031793271. The reversal of 238031793261 is 162397130832.

238031793261 is a `hidden beast` number, since 2 + 3 + 8 + 0 + 317 + 9 + 326 + 1 = 666.

It is not a de Polignac number, because 238031793261 - 2³ = 238031793253 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 (238031793211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2341990 + ... + 2441511.

It is an arithmetic number, because the mean of its divisors is an integer number (11719579900).

Almost surely, 2^238031793261 is an apocalyptic number.

It is an amenable number.

238031793261 is a deficient number, since it is larger than the sum of its proper divisors (136994763539).

238031793261 is a wasteful number, since it uses less digits than its factorization.

238031793261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4783626 (or 4783620 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 238031793261 in words is "two hundred thirty-eight billion, thirty-one million, seven hundred ninety-three thousand, two hundred sixty-one".