949272750821 has 2 divisors, whose sum is σ = 949272750822. Its totient is φ = 949272750820.

The previous prime is 949272750793. The next prime is 949272750827. The reversal of 949272750821 is 128057272949.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 491525785921 + 457746964900 = 701089^2 + 676570^2 .

It is a cyclic number.

It is not a de Polignac number, because 949272750821 - 2³⁰ = 948199008997 is a prime.

It is a super-2 number, since 2×949272750821² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (949272750827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474636375410 + 474636375411.

It is an arithmetic number, because the mean of its divisors is an integer number (474636375411).

Almost surely, 2^949272750821 is an apocalyptic number.

It is an amenable number.

949272750821 is a deficient number, since it is larger than the sum of its proper divisors (1).

949272750821 is an equidigital number, since it uses as much as digits as its factorization.

949272750821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 56.

The spelling of 949272750821 in words is "nine hundred forty-nine billion, two hundred seventy-two million, seven hundred fifty thousand, eight hundred twenty-one".