649295008919 has 2 divisors, whose sum is σ = 649295008920. Its totient is φ = 649295008918.

The previous prime is 649295008889. The next prime is 649295008927. The reversal of 649295008919 is 919800592946.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 649295008919 - 2²⁸ = 649026573463 is a prime.

It is a super-2 number, since 2×649295008919² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (649295028919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324647504459 + 324647504460.

It is an arithmetic number, because the mean of its divisors is an integer number (324647504460).

Almost surely, 2^649295008919 is an apocalyptic number.

649295008919 is a deficient number, since it is larger than the sum of its proper divisors (1).

649295008919 is an equidigital number, since it uses as much as digits as its factorization.

649295008919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12597120, while the sum is 62.

The spelling of 649295008919 in words is "six hundred forty-nine billion, two hundred ninety-five million, eight thousand, nine hundred nineteen".