49577761069 has 2 divisors, whose sum is σ = 49577761070. Its totient is φ = 49577761068.

The previous prime is 49577761033. The next prime is 49577761073. The reversal of 49577761069 is 96016777594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43030523844 + 6547237225 = 207438^2 + 80915^2 .

It is a cyclic number.

It is not a de Polignac number, because 49577761069 - 2¹³ = 49577752877 is a prime.

It is a super-2 number, since 2×49577761069² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 49577760998 and 49577761016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49577761369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24788880534 + 24788880535.

It is an arithmetic number, because the mean of its divisors is an integer number (24788880535).

Almost surely, 2^49577761069 is an apocalyptic number.

It is an amenable number.

49577761069 is a deficient number, since it is larger than the sum of its proper divisors (1).

49577761069 is an equidigital number, since it uses as much as digits as its factorization.

49577761069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20003760, while the sum is 61.

The spelling of 49577761069 in words is "forty-nine billion, five hundred seventy-seven million, seven hundred sixty-one thousand, sixty-nine".