1359807681 has 32 divisors (see below), whose sum is σ = 1886467968. Its totient is φ = 870658560.

The previous prime is 1359807677. The next prime is 1359807737. The reversal of 1359807681 is 1867089531.

It is not a de Polignac number, because 1359807681 - 2² = 1359807677 is a prime.

It is a super-2 number, since 2×1359807681² = 3698153858613195522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1359807681.

It is not an unprimeable number, because it can be changed into a prime (1359807661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3645411 + ... + 3645783.

It is an arithmetic number, because the mean of its divisors is an integer number (58952124).

Almost surely, 2^1359807681 is an apocalyptic number.

It is an amenable number.

1359807681 is a deficient number, since it is larger than the sum of its proper divisors (526660287).

1359807681 is a wasteful number, since it uses less digits than its factorization.

1359807681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801.

The product of its (nonzero) digits is 362880, while the sum is 48.

The square root of 1359807681 is about 36875.5702464382. The cubic root of 1359807681 is about 1107.8794243039.

The spelling of 1359807681 in words is "one billion, three hundred fifty-nine million, eight hundred seven thousand, six hundred eighty-one".