146394379858 has 4 divisors (see below), whose sum is σ = 219591569790. Its totient is φ = 73197189928.

The previous prime is 146394379843. The next prime is 146394379861. The reversal of 146394379858 is 858973493641.

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

It can be written as a sum of positive squares in only one way, i.e., 101992725769 + 44401654089 = 319363^2 + 210717^2 .

It is a super-2 number, since 2×146394379858² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 146394379793 and 146394379802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36598594963 + ... + 36598594966.

Almost surely, 2^146394379858 is an apocalyptic number.

146394379858 is a deficient number, since it is larger than the sum of its proper divisors (73197189932).

146394379858 is an equidigital number, since it uses as much as digits as its factorization.

146394379858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73197189931.

The product of its digits is 156764160, while the sum is 67.

The spelling of 146394379858 in words is "one hundred forty-six billion, three hundred ninety-four million, three hundred seventy-nine thousand, eight hundred fifty-eight".