649878150 has 24 divisors (see below), whose sum is σ = 1611698184. Its totient is φ = 173300800.

The previous prime is 649878143. The next prime is 649878157. The reversal of 649878150 is 51878946.

649878150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (649878143) and next prime (649878157).

It is a self number, because there is not a number n which added to its sum of digits gives 649878150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649878157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2166111 + ... + 2166410.

It is an arithmetic number, because the mean of its divisors is an integer number (67154091).

Almost surely, 2^649878150 is an apocalyptic number.

649878150 is an abundant number, since it is smaller than the sum of its proper divisors (961820034).

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

649878150 is a wasteful number, since it uses less digits than its factorization.

649878150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4332536 (or 4332531 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 649878150 is about 25492.7077808537. The cubic root of 649878150 is about 866.1849731197.

It can be divided in two parts, 64987 and 8150, that added together give a palindrome (73137).

The spelling of 649878150 in words is "six hundred forty-nine million, eight hundred seventy-eight thousand, one hundred fifty".