1361455779772 has 96 divisors (see below), whose sum is σ = 2722209202944. Its totient is φ = 590314982400.

The previous prime is 1361455779763. The next prime is 1361455779791. The reversal of 1361455779772 is 2779775541631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17662788 + ... + 17739700.

It is an arithmetic number, because the mean of its divisors is an integer number (28356345864).

Almost surely, 2^{1361455779772} is an apocalyptic number.

It is an amenable number.

1361455779772 is a deficient number, since it is larger than the sum of its proper divisors (1360753423172).

1361455779772 is a wasteful number, since it uses less digits than its factorization.

1361455779772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77179 (or 77177 counting only the distinct ones).

The product of its digits is 77792400, while the sum is 64.

The spelling of 1361455779772 in words is "one trillion, three hundred sixty-one billion, four hundred fifty-five million, seven hundred seventy-nine thousand, seven hundred seventy-two".