5047621949 has 2 divisors, whose sum is σ = 5047621950. Its totient is φ = 5047621948.

The previous prime is 5047621939. The next prime is 5047621979. The reversal of 5047621949 is 9491267405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2884441849 + 2163180100 = 53707^2 + 46510^2 .

It is a cyclic number.

It is not a de Polignac number, because 5047621949 - 2⁴ = 5047621933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5047621919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2523810974 + 2523810975.

It is an arithmetic number, because the mean of its divisors is an integer number (2523810975).

Almost surely, 2^5047621949 is an apocalyptic number.

It is an amenable number.

5047621949 is a deficient number, since it is larger than the sum of its proper divisors (1).

5047621949 is an equidigital number, since it uses as much as digits as its factorization.

5047621949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 5047621949 is about 71046.6181390782. The cubic root of 5047621949 is about 1715.3876277037.

The spelling of 5047621949 in words is "five billion, forty-seven million, six hundred twenty-one thousand, nine hundred forty-nine".