49877755069 has 2 divisors, whose sum is σ = 49877755070. Its totient is φ = 49877755068.

The previous prime is 49877755003. The next prime is 49877755091. The reversal of 49877755069 is 96055777894.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48825531225 + 1052223844 = 220965^2 + 32438^2 .

It is a cyclic number.

It is not a de Polignac number, because 49877755069 - 2²⁹ = 49340884157 is a prime.

It is a super-2 number, since 2×49877755069² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49877754995 and 49877755013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49877705069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24938877534 + 24938877535.

It is an arithmetic number, because the mean of its divisors is an integer number (24938877535).

Almost surely, 2^49877755069 is an apocalyptic number.

It is an amenable number.

49877755069 is a deficient number, since it is larger than the sum of its proper divisors (1).

49877755069 is an equidigital number, since it uses as much as digits as its factorization.

49877755069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 133358400, while the sum is 67.

The spelling of 49877755069 in words is "forty-nine billion, eight hundred seventy-seven million, seven hundred fifty-five thousand, sixty-nine".