107987800709 has 2 divisors, whose sum is σ = 107987800710. Its totient is φ = 107987800708.

The previous prime is 107987800651. The next prime is 107987800751. The reversal of 107987800709 is 907008789701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106005592225 + 1982208484 = 325585^2 + 44522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-107987800709 is a prime.

It is a super-2 number, since 2×107987800709² (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 (107987800769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53993900354 + 53993900355.

It is an arithmetic number, because the mean of its divisors is an integer number (53993900355).

Almost surely, 2^107987800709 is an apocalyptic number.

It is an amenable number.

107987800709 is a deficient number, since it is larger than the sum of its proper divisors (1).

107987800709 is an equidigital number, since it uses as much as digits as its factorization.

107987800709 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 56.

The spelling of 107987800709 in words is "one hundred seven billion, nine hundred eighty-seven million, eight hundred thousand, seven hundred nine".