107670636781 has 2 divisors, whose sum is σ = 107670636782. Its totient is φ = 107670636780.

The previous prime is 107670636769. The next prime is 107670636817. The reversal of 107670636781 is 187636076701.

Together with next prime (107670636817) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82464311556 + 25206325225 = 287166^2 + 158765^2 .

It is a cyclic number.

It is not a de Polignac number, because 107670636781 - 2²⁵ = 107637082349 is a prime.

It is a super-2 number, since 2×107670636781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (107670606781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53835318390 + 53835318391.

It is an arithmetic number, because the mean of its divisors is an integer number (53835318391).

Almost surely, 2^107670636781 is an apocalyptic number.

It is an amenable number.

107670636781 is a deficient number, since it is larger than the sum of its proper divisors (1).

107670636781 is an equidigital number, since it uses as much as digits as its factorization.

107670636781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1778112, while the sum is 52.

The spelling of 107670636781 in words is "one hundred seven billion, six hundred seventy million, six hundred thirty-six thousand, seven hundred eighty-one".