236990378493 has 96 divisors (see below), whose sum is σ = 400731027840. Its totient is φ = 133592094720.

The previous prime is 236990378479. The next prime is 236990378501. The reversal of 236990378493 is 394873099632.

236990378493 is a `hidden beast` number, since 23 + 6 + 9 + 90 + 37 + 8 + 493 = 666.

It is not a de Polignac number, because 236990378493 - 2⁵ = 236990378461 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 236990378493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (236990378413) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8998921 + ... + 9025217.

It is an arithmetic number, because the mean of its divisors is an integer number (4174281540).

Almost surely, 2^236990378493 is an apocalyptic number.

It is an amenable number.

236990378493 is a deficient number, since it is larger than the sum of its proper divisors (163740649347).

236990378493 is a wasteful number, since it uses less digits than its factorization.

236990378493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26459 (or 26456 counting only the distinct ones).

The product of its (nonzero) digits is 52907904, while the sum is 63.

The spelling of 236990378493 in words is "two hundred thirty-six billion, nine hundred ninety million, three hundred seventy-eight thousand, four hundred ninety-three".