49977387197 has 2 divisors, whose sum is σ = 49977387198. Its totient is φ = 49977387196.

The previous prime is 49977387167. The next prime is 49977387227. The reversal of 49977387197 is 79178377994.

It is a balanced prime because it is at equal distance from previous prime (49977387167) and next prime (49977387227).

It can be written as a sum of positive squares in only one way, i.e., 30726934681 + 19250452516 = 175291^2 + 138746^2 .

It is a cyclic number.

It is not a de Polignac number, because 49977387197 - 2¹² = 49977383101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49977387197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49977387137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24988693598 + 24988693599.

It is an arithmetic number, because the mean of its divisors is an integer number (24988693599).

Almost surely, 2^49977387197 is an apocalyptic number.

It is an amenable number.

49977387197 is a deficient number, since it is larger than the sum of its proper divisors (1).

49977387197 is an equidigital number, since it uses as much as digits as its factorization.

49977387197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 168031584, while the sum is 71.

The spelling of 49977387197 in words is "forty-nine billion, nine hundred seventy-seven million, three hundred eighty-seven thousand, one hundred ninety-seven".