1360687877721 has 16 divisors (see below), whose sum is σ = 2121930414400. Its totient is φ = 859381817184.

The previous prime is 1360687877693. The next prime is 1360687877729. The reversal of 1360687877721 is 1277787860631.

1360687877721 is a `hidden beast` number, since 13 + 606 + 8 + 7 + 8 + 7 + 7 + 7 + 2 + 1 = 666.

It is not a de Polignac number, because 1360687877721 - 2¹⁸ = 1360687615577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1360687877729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1326205996 + ... + 1326207021.

It is an arithmetic number, because the mean of its divisors is an integer number (132620650900).

Almost surely, 2^{1360687877721} is an apocalyptic number.

It is an amenable number.

1360687877721 is a deficient number, since it is larger than the sum of its proper divisors (761242536679).

1360687877721 is a wasteful number, since it uses less digits than its factorization.

1360687877721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2652413045 (or 2652413039 counting only the distinct ones).

The product of its (nonzero) digits is 33191424, while the sum is 63.

The spelling of 1360687877721 in words is "one trillion, three hundred sixty billion, six hundred eighty-seven million, eight hundred seventy-seven thousand, seven hundred twenty-one".