107913778477 has 2 divisors, whose sum is σ = 107913778478. Its totient is φ = 107913778476.

The previous prime is 107913778367. The next prime is 107913778493. The reversal of 107913778477 is 774877319701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103723287721 + 4190490756 = 322061^2 + 64734^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-107913778477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (107913278477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53956889238 + 53956889239.

It is an arithmetic number, because the mean of its divisors is an integer number (53956889239).

Almost surely, 2^107913778477 is an apocalyptic number.

It is an amenable number.

107913778477 is a deficient number, since it is larger than the sum of its proper divisors (1).

107913778477 is an equidigital number, since it uses as much as digits as its factorization.

107913778477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14521248, while the sum is 61.

The spelling of 107913778477 in words is "one hundred seven billion, nine hundred thirteen million, seven hundred seventy-eight thousand, four hundred seventy-seven".