1361856707 has 4 divisors (see below), whose sum is σ = 1365186840. Its totient is φ = 1358526576.

The previous prime is 1361856701. The next prime is 1361856709. The reversal of 1361856707 is 7076581631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1361856707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1361856701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1664453 + ... + 1665270.

It is an arithmetic number, because the mean of its divisors is an integer number (341296710).

Almost surely, 2^1361856707 is an apocalyptic number.

1361856707 is a deficient number, since it is larger than the sum of its proper divisors (3330133).

1361856707 is an equidigital number, since it uses as much as digits as its factorization.

1361856707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3330132.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 1361856707 is about 36903.3427618691. The cubic root of 1361856707 is about 1108.4356143471.

The spelling of 1361856707 in words is "one billion, three hundred sixty-one million, eight hundred fifty-six thousand, seven hundred seven".