351784120818982 has 4 divisors (see below), whose sum is σ = 527676181228476. Its totient is φ = 175892060409490.

The previous prime is 351784120818943. The next prime is 351784120818983. The reversal of 351784120818982 is 289818021487153.

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

It is a super-4 number, since 4×351784120818982⁴ (a number of 59 digits) contains 4444 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (351784120818983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87946030204744 + ... + 87946030204747.

It is an arithmetic number, because the mean of its divisors is an integer number (131919045307119).

Almost surely, 2^{351784120818982} is an apocalyptic number.

351784120818982 is a deficient number, since it is larger than the sum of its proper divisors (175892060409494).

351784120818982 is a wasteful number, since it uses less digits than its factorization.

351784120818982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175892060409493.

The product of its (nonzero) digits is 61931520, while the sum is 67.

The spelling of 351784120818982 in words is "three hundred fifty-one trillion, seven hundred eighty-four billion, one hundred twenty million, eight hundred eighteen thousand, nine hundred eighty-two".