121934993164858 has 8 divisors (see below), whose sum is σ = 185900891218740. Its totient is φ = 59968029425280.

The previous prime is 121934993164849. The next prime is 121934993164891. The reversal of 121934993164858 is 858461399439121.

It can be written as a sum of positive squares in 2 ways, for example, as 82123776955089 + 39811216209769 = 9062217^2 + 6309613^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×121934993164858² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499733578423 + ... + 499733578666.

Almost surely, 2^{121934993164858} is an apocalyptic number.

121934993164858 is a deficient number, since it is larger than the sum of its proper divisors (63965898053882).

121934993164858 is an equidigital number, since it uses as much as digits as its factorization.

121934993164858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999467157152.

The product of its digits is 403107840, while the sum is 73.

The spelling of 121934993164858 in words is "one hundred twenty-one trillion, nine hundred thirty-four billion, nine hundred ninety-three million, one hundred sixty-four thousand, eight hundred fifty-eight".