1361959786 has 48 divisors (see below), whose sum is σ = 2399554080. Its totient is φ = 577605600.

The previous prime is 1361959723. The next prime is 1361959787. The reversal of 1361959786 is 6879591631.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1361959787) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 305856 + ... + 310276.

It is an arithmetic number, because the mean of its divisors is an integer number (49990710).

Almost surely, 2^1361959786 is an apocalyptic number.

1361959786 is a deficient number, since it is larger than the sum of its proper divisors (1037594294).

1361959786 is a wasteful number, since it uses less digits than its factorization.

1361959786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531 (or 4520 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 55.

The square root of 1361959786 is about 36904.7393433418. The cubic root of 1361959786 is about 1108.4635794900.

The spelling of 1361959786 in words is "one billion, three hundred sixty-one million, nine hundred fifty-nine thousand, seven hundred eighty-six".