49019713777 has 2 divisors, whose sum is σ = 49019713778. Its totient is φ = 49019713776.

The previous prime is 49019713733. The next prime is 49019713793. The reversal of 49019713777 is 77731791094.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47009177856 + 2010535921 = 216816^2 + 44839^2 .

It is a cyclic number.

It is not a de Polignac number, because 49019713777 - 2³¹ = 46872230129 is a prime.

It is not a weakly prime, because it can be changed into another prime (49019710777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24509856888 + 24509856889.

It is an arithmetic number, because the mean of its divisors is an integer number (24509856889).

Almost surely, 2^49019713777 is an apocalyptic number.

It is an amenable number.

49019713777 is a deficient number, since it is larger than the sum of its proper divisors (1).

49019713777 is an equidigital number, since it uses as much as digits as its factorization.

49019713777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2333772, while the sum is 55.

The spelling of 49019713777 in words is "forty-nine billion, nineteen million, seven hundred thirteen thousand, seven hundred seventy-seven".