64545850 has 24 divisors (see below), whose sum is σ = 126375840. Its totient is φ = 24459120.

The previous prime is 64545799. The next prime is 64545883. The reversal of 64545850 is 5854546.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33022 + ... + 34921.

It is an arithmetic number, because the mean of its divisors is an integer number (5265660).

Almost surely, 2^64545850 is an apocalyptic number.

64545850 is a deficient number, since it is larger than the sum of its proper divisors (61829990).

64545850 is a wasteful number, since it uses less digits than its factorization.

64545850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67974 (or 67969 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

The square root of 64545850 is about 8034.0431913203. The cubic root of 64545850 is about 401.1339697437.

The spelling of 64545850 in words is "sixty-four million, five hundred forty-five thousand, eight hundred fifty".