1351986491763 has 64 divisors (see below), whose sum is σ = 2200955904000. Its totient is φ = 816416571168.

The previous prime is 1351986491753. The next prime is 1351986491813. The reversal of 1351986491763 is 3671946891531.

It is a happy number.

1351986491763 is a `hidden beast` number, since 1 + 3 + 5 + 1 + 9 + 86 + 491 + 7 + 63 = 666.

It is not a de Polignac number, because 1351986491763 - 2¹³ = 1351986483571 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1351986491763.

It is not an unprimeable number, because it can be changed into a prime (1351986491753) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29510008 + ... + 29555786.

It is an arithmetic number, because the mean of its divisors is an integer number (34389936000).

Almost surely, 2^{1351986491763} is an apocalyptic number.

1351986491763 is a deficient number, since it is larger than the sum of its proper divisors (848969412237).

1351986491763 is a wasteful number, since it uses less digits than its factorization.

1351986491763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48333 (or 48327 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 63.

The spelling of 1351986491763 in words is "one trillion, three hundred fifty-one billion, nine hundred eighty-six million, four hundred ninety-one thousand, seven hundred sixty-three".