649935189294 has 32 divisors (see below), whose sum is σ = 1391475888000. Its totient is φ = 201763999584.

The previous prime is 649935189269. The next prime is 649935189311. The reversal of 649935189294 is 492981539946.

It is a super-2 number, since 2×649935189294² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48308409 + ... + 48321860.

It is an arithmetic number, because the mean of its divisors is an integer number (43483621500).

Almost surely, 2^649935189294 is an apocalyptic number.

649935189294 is an abundant number, since it is smaller than the sum of its proper divisors (741540698706).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

649935189294 is a wasteful number, since it uses less digits than its factorization.

649935189294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96630352.

The product of its digits is 151165440, while the sum is 69.

The spelling of 649935189294 in words is "six hundred forty-nine billion, nine hundred thirty-five million, one hundred eighty-nine thousand, two hundred ninety-four".