236996380809 has 36 divisors (see below), whose sum is σ = 363867515856. Its totient is φ = 148614496128.

The previous prime is 236996380783. The next prime is 236996380897. The reversal of 236996380809 is 908083699632.

It is not a de Polignac number, because 236996380809 - 2²¹ = 236994283657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (236996382809) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4455082 + ... + 4507964.

It is an arithmetic number, because the mean of its divisors is an integer number (10107430996).

Almost surely, 2^236996380809 is an apocalyptic number.

It is an amenable number.

236996380809 is a deficient number, since it is larger than the sum of its proper divisors (126871135047).

236996380809 is a wasteful number, since it uses less digits than its factorization.

236996380809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54646 (or 54626 counting only the distinct ones).

The product of its (nonzero) digits is 30233088, while the sum is 63.

The spelling of 236996380809 in words is "two hundred thirty-six billion, nine hundred ninety-six million, three hundred eighty thousand, eight hundred nine".