1420254686218 has 4 divisors (see below), whose sum is σ = 2130382029330. Its totient is φ = 710127343108.

The previous prime is 1420254686209. The next prime is 1420254686251. The reversal of 1420254686218 is 8126864520241.

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., 1363633056009 + 56621630209 = 1167747^2 + 237953^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355063671553 + ... + 355063671556.

Almost surely, 2^{1420254686218} is an apocalyptic number.

1420254686218 is a deficient number, since it is larger than the sum of its proper divisors (710127343112).

1420254686218 is an equidigital number, since it uses as much as digits as its factorization.

1420254686218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710127343111.

The product of its (nonzero) digits is 1474560, while the sum is 49.

The spelling of 1420254686218 in words is "one trillion, four hundred twenty billion, two hundred fifty-four million, six hundred eighty-six thousand, two hundred eighteen".