10361977780681 has 8 divisors (see below), whose sum is σ = 10382946789600. Its totient is φ = 10341024667680.

The previous prime is 10361977780667. The next prime is 10361977780697. The reversal of 10361977780681 is 18608777916301.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10361977780681 - 2²¹ = 10361975683529 is a prime.

It is a super-3 number, since 3×10361977780681³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10361977780481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2668500 + ... + 5276821.

It is an arithmetic number, because the mean of its divisors is an integer number (1297868348700).

Almost surely, 2^{10361977780681} is an apocalyptic number.

It is an amenable number.

10361977780681 is a deficient number, since it is larger than the sum of its proper divisors (20969008919).

10361977780681 is an equidigital number, since it uses as much as digits as its factorization.

10361977780681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7947959.

The product of its (nonzero) digits is 21337344, while the sum is 64.

The spelling of 10361977780681 in words is "ten trillion, three hundred sixty-one billion, nine hundred seventy-seven million, seven hundred eighty thousand, six hundred eighty-one".