1641623852 has 24 divisors (see below), whose sum is σ = 3149934480. Its totient is φ = 742400960.

The previous prime is 1641623843. The next prime is 1641623891. The reversal of 1641623852 is 2583261461.

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, 86027 + ... + 103362.

It is an arithmetic number, because the mean of its divisors is an integer number (131247270).

Almost surely, 2^1641623852 is an apocalyptic number.

It is an amenable number.

1641623852 is a deficient number, since it is larger than the sum of its proper divisors (1508310628).

1641623852 is a wasteful number, since it uses less digits than its factorization.

1641623852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189601 (or 189599 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 1641623852 is about 40516.9575856826. The cubic root of 1641623852 is about 1179.6628003274.

The spelling of 1641623852 in words is "one billion, six hundred forty-one million, six hundred twenty-three thousand, eight hundred fifty-two".