268446815040 has 112 divisors (see below), whose sum is σ = 902455083072.
Its totient is φ = 67374882816.
The previous prime is 268446814997. The next prime is 268446815149. The reversal of 268446815040 is 40518644862.
It is a Harshad number since it is a multiple of its sum of digits (48).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8208154 + ... + 8240793.
Almost surely, 2268446815040 is an apocalyptic number.
268446815040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
268446815040 is an abundant number, since it is smaller than the sum of its proper divisors (634008268032).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
268446815040 is a wasteful number, since it uses less digits than its factorization.
268446815040 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16448984 (or 16448974 counting only the distinct ones).
The product of its (nonzero) digits is 1474560, while the sum is 48.
The spelling of 268446815040 in words is "two hundred sixty-eight billion, four hundred forty-six million, eight hundred fifteen thousand, forty".