67838545165250 has 32 divisors (see below), whose sum is σ = 128733397084656. Its totient is φ = 26763700003200.

The previous prime is 67838545165231. The next prime is 67838545165267. The reversal of 67838545165250 is 5256154583876.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1882820321281 + 65955724843969 = 1372159^2 + 8121313^2 .

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, 1858572029 + ... + 1858608528.

Almost surely, 2^{67838545165250} is an apocalyptic number.

67838545165250 is a deficient number, since it is larger than the sum of its proper divisors (60894851919406).

67838545165250 is a wasteful number, since it uses less digits than its factorization.

67838545165250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3717180647 (or 3717180637 counting only the distinct ones).

The product of its (nonzero) digits is 241920000, while the sum is 65.

The spelling of 67838545165250 in words is "sixty-seven trillion, eight hundred thirty-eight billion, five hundred forty-five million, one hundred sixty-five thousand, two hundred fifty".