649902127046 has 8 divisors (see below), whose sum is σ = 1008468817920. Its totient is φ = 313745854408.

The previous prime is 649902127013. The next prime is 649902127081. The reversal of 649902127046 is 640721209946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×649902127046² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 649902126985 and 649902127003.

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 3 ways as a sum of consecutive naturals, for example, 5602604486 + ... + 5602604601.

It is an arithmetic number, because the mean of its divisors is an integer number (126058602240).

Almost surely, 2^649902127046 is an apocalyptic number.

649902127046 is a deficient number, since it is larger than the sum of its proper divisors (358566690874).

649902127046 is a wasteful number, since it uses less digits than its factorization.

649902127046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11205209118.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The spelling of 649902127046 in words is "six hundred forty-nine billion, nine hundred two million, one hundred twenty-seven thousand, forty-six".