49353953977 has 2 divisors, whose sum is σ = 49353953978. Its totient is φ = 49353953976.

The previous prime is 49353953959. The next prime is 49353953989. The reversal of 49353953977 is 77935935394.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40886457616 + 8467496361 = 202204^2 + 92019^2 .

It is a cyclic number.

It is not a de Polignac number, because 49353953977 - 2⁷ = 49353953849 is a prime.

It is not a weakly prime, because it can be changed into another prime (49353953947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24676976988 + 24676976989.

It is an arithmetic number, because the mean of its divisors is an integer number (24676976989).

Almost surely, 2^49353953977 is an apocalyptic number.

It is an amenable number.

49353953977 is a deficient number, since it is larger than the sum of its proper divisors (1).

49353953977 is an equidigital number, since it uses as much as digits as its factorization.

49353953977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96446700, while the sum is 64.

The spelling of 49353953977 in words is "forty-nine billion, three hundred fifty-three million, nine hundred fifty-three thousand, nine hundred seventy-seven".