64123078 has 8 divisors (see below), whose sum is σ = 97761600. Its totient is φ = 31535880.

The previous prime is 64123069. The next prime is 64123079. The reversal of 64123078 is 87032146.

64123078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×64123078² = 8223538264388168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64123079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262678 + ... + 262921.

It is an arithmetic number, because the mean of its divisors is an integer number (12220200).

Almost surely, 2^64123078 is an apocalyptic number.

64123078 is a deficient number, since it is larger than the sum of its proper divisors (33638522).

64123078 is a wasteful number, since it uses less digits than its factorization.

64123078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525662.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 64123078 is about 8007.6886802622. The cubic root of 64123078 is about 400.2562483070.

The spelling of 64123078 in words is "sixty-four million, one hundred twenty-three thousand, seventy-eight".