4561649372 has 24 divisors (see below), whose sum is σ = 9659964384. Its totient is φ = 1839992832.

The previous prime is 4561649341. The next prime is 4561649383. The reversal of 4561649372 is 2739461654.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4791173 + ... + 4792124.

It is an arithmetic number, because the mean of its divisors is an integer number (402498516).

Almost surely, 2^4561649372 is an apocalyptic number.

It is an amenable number.

4561649372 is an abundant number, since it is smaller than the sum of its proper divisors (5098315012).

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

4561649372 is a wasteful number, since it uses less digits than its factorization.

4561649372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9583325 (or 9583323 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 47.

The square root of 4561649372 is about 67539.9835060685. The cubic root of 4561649372 is about 1658.4687786433.

The spelling of 4561649372 in words is "four billion, five hundred sixty-one million, six hundred forty-nine thousand, three hundred seventy-two".