99947274919 has 2 divisors, whose sum is σ = 99947274920. Its totient is φ = 99947274918.

The previous prime is 99947274913. The next prime is 99947274923. The reversal of 99947274919 is 91947274999.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99947274919 is a prime.

It is a super-2 number, since 2×99947274919² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99947274913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49973637459 + 49973637460.

It is an arithmetic number, because the mean of its divisors is an integer number (49973637460).

Almost surely, 2^99947274919 is an apocalyptic number.

99947274919 is a deficient number, since it is larger than the sum of its proper divisors (1).

99947274919 is an equidigital number, since it uses as much as digits as its factorization.

99947274919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92588832, while the sum is 70.

The spelling of 99947274919 in words is "ninety-nine billion, nine hundred forty-seven million, two hundred seventy-four thousand, nine hundred nineteen".