1361928879 has 12 divisors (see below), whose sum is σ = 1968862896. Its totient is φ = 907199232.

The previous prime is 1361928787. The next prime is 1361928881. The reversal of 1361928879 is 9788291631.

1361928879 is a `hidden beast` number, since 13 + 619 + 2 + 8 + 8 + 7 + 9 = 666.

It is not a de Polignac number, because 1361928879 - 2⁷ = 1361928751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361928679) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51219 + ... + 73124.

It is an arithmetic number, because the mean of its divisors is an integer number (164071908).

Almost surely, 2^1361928879 is an apocalyptic number.

1361928879 is a deficient number, since it is larger than the sum of its proper divisors (606934017).

1361928879 is a wasteful number, since it uses less digits than its factorization.

1361928879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125566 (or 125563 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The square root of 1361928879 is about 36904.3206007102. The cubic root of 1361928879 is about 1108.4551946259.

The spelling of 1361928879 in words is "one billion, three hundred sixty-one million, nine hundred twenty-eight thousand, eight hundred seventy-nine".