1291493556062 has 4 divisors (see below), whose sum is σ = 1937240334096. Its totient is φ = 645746778030.

The previous prime is 1291493555999. The next prime is 1291493556091. The reversal of 1291493556062 is 2606553941921.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 1291493555995 and 1291493556013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 322873389014 + ... + 322873389017.

It is an arithmetic number, because the mean of its divisors is an integer number (484310083524).

Almost surely, 2^{1291493556062} is an apocalyptic number.

1291493556062 is a deficient number, since it is larger than the sum of its proper divisors (645746778034).

1291493556062 is an equidigital number, since it uses as much as digits as its factorization.

1291493556062 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645746778033.

The product of its (nonzero) digits is 3499200, while the sum is 53.

The spelling of 1291493556062 in words is "one trillion, two hundred ninety-one billion, four hundred ninety-three million, five hundred fifty-six thousand, sixty-two".