97822009854749 has 2 divisors, whose sum is σ = 97822009854750. Its totient is φ = 97822009854748.

The previous prime is 97822009854689. The next prime is 97822009854763. The reversal of 97822009854749 is 94745890022879.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70510986114724 + 27311023740025 = 8397082^2 + 5225995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97822009854749 is a prime.

It is a super-2 number, since 2×97822009854749² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97822009854799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48911004927374 + 48911004927375.

It is an arithmetic number, because the mean of its divisors is an integer number (48911004927375).

Almost surely, 2^{97822009854749} is an apocalyptic number.

It is an amenable number.

97822009854749 is a deficient number, since it is larger than the sum of its proper divisors (1).

97822009854749 is an equidigital number, since it uses as much as digits as its factorization.

97822009854749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 731566080, while the sum is 74.

The spelling of 97822009854749 in words is "ninety-seven trillion, eight hundred twenty-two billion, nine million, eight hundred fifty-four thousand, seven hundred forty-nine".