64486158 has 48 divisors (see below), whose sum is σ = 147159936. Its totient is φ = 18681520.

The previous prime is 64486139. The next prime is 64486159. The reversal of 64486158 is 85168446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64486159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33991 + ... + 35837.

It is an arithmetic number, because the mean of its divisors is an integer number (3065832).

Almost surely, 2^64486158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64486158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73579968).

64486158 is an abundant number, since it is smaller than the sum of its proper divisors (82673778).

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

64486158 is a wasteful number, since it uses less digits than its factorization.

64486158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909 (or 1886 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 64486158 is about 8030.3273905863. The cubic root of 64486158 is about 401.0102753776.

The spelling of 64486158 in words is "sixty-four million, four hundred eighty-six thousand, one hundred fifty-eight".