268790137958 has 4 divisors (see below), whose sum is σ = 403185206940. Its totient is φ = 134395068978.

The previous prime is 268790137949. The next prime is 268790138027. The reversal of 268790137958 is 859731097862.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 268790137894 and 268790137903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67197534488 + ... + 67197534491.

It is an arithmetic number, because the mean of its divisors is an integer number (100796301735).

Almost surely, 2^268790137958 is an apocalyptic number.

268790137958 is a deficient number, since it is larger than the sum of its proper divisors (134395068982).

268790137958 is a wasteful number, since it uses less digits than its factorization.

268790137958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134395068981.

The product of its (nonzero) digits is 45722880, while the sum is 65.

The spelling of 268790137958 in words is "two hundred sixty-eight billion, seven hundred ninety million, one hundred thirty-seven thousand, nine hundred fifty-eight".