64157882 has 4 divisors (see below), whose sum is σ = 96236826. Its totient is φ = 32078940.

The previous prime is 64157869. The next prime is 64157887. The reversal of 64157882 is 28875146.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 40819321 + 23338561 = 6389^2 + 4831^2 .

It is not an unprimeable number, because it can be changed into a prime (64157887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16039469 + ... + 16039472.

Almost surely, 2^64157882 is an apocalyptic number.

64157882 is a deficient number, since it is larger than the sum of its proper divisors (32078944).

64157882 is a wasteful number, since it uses less digits than its factorization.

64157882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32078943.

The product of its digits is 107520, while the sum is 41.

The square root of 64157882 is about 8009.8615468683. The cubic root of 64157882 is about 400.3286507311.

The spelling of 64157882 in words is "sixty-four million, one hundred fifty-seven thousand, eight hundred eighty-two".