42048806377 has 2 divisors, whose sum is σ = 42048806378. Its totient is φ = 42048806376.

The previous prime is 42048806369. The next prime is 42048806381. The reversal of 42048806377 is 77360884024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33103619136 + 8945187241 = 181944^2 + 94579^2 .

It is a cyclic number.

It is not a de Polignac number, because 42048806377 - 2³ = 42048806369 is a prime.

It is a super-2 number, since 2×42048806377² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42048806377.

It is not a weakly prime, because it can be changed into another prime (42048806357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21024403188 + 21024403189.

It is an arithmetic number, because the mean of its divisors is an integer number (21024403189).

Almost surely, 2^42048806377 is an apocalyptic number.

It is an amenable number.

42048806377 is a deficient number, since it is larger than the sum of its proper divisors (1).

42048806377 is an equidigital number, since it uses as much as digits as its factorization.

42048806377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1806336, while the sum is 49.

The spelling of 42048806377 in words is "forty-two billion, forty-eight million, eight hundred six thousand, three hundred seventy-seven".