94747474949 has 2 divisors, whose sum is σ = 94747474950. Its totient is φ = 94747474948.

The previous prime is 94747474931. The next prime is 94747474951. The reversal of 94747474949 is 94947474749.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90537801025 + 4209673924 = 300895^2 + 64882^2 .

It is a cyclic number.

It is not a de Polignac number, because 94747474949 - 2²⁰ = 94746426373 is a prime.

It is a super-2 number, since 2×94747474949² (a number of 23 digits) contains 22 as substring.

Together with 94747474951, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94747474999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47373737474 + 47373737475.

It is an arithmetic number, because the mean of its divisors is an integer number (47373737475).

Almost surely, 2^94747474949 is an apocalyptic number.

It is an amenable number.

94747474949 is a deficient number, since it is larger than the sum of its proper divisors (1).

94747474949 is an equidigital number, since it uses as much as digits as its factorization.

94747474949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 256048128, while the sum is 68.

The spelling of 94747474949 in words is "ninety-four billion, seven hundred forty-seven million, four hundred seventy-four thousand, nine hundred forty-nine".