64596241878 has 64 divisors (see below), whose sum is σ = 161376841728. Its totient is φ = 16810076160.

The previous prime is 64596241877. The next prime is 64596241937. The reversal of 64596241878 is 87814269546.

It is a happy number.

It is a super-2 number, since 2×64596241878² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64596241877) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1437075 + ... + 1481342.

It is an arithmetic number, because the mean of its divisors is an integer number (2521513152).

Almost surely, 2^64596241878 is an apocalyptic number.

64596241878 is an abundant number, since it is smaller than the sum of its proper divisors (96780599850).

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

64596241878 is a wasteful number, since it uses less digits than its factorization.

64596241878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2918477.

The product of its digits is 23224320, while the sum is 60.

The spelling of 64596241878 in words is "sixty-four billion, five hundred ninety-six million, two hundred forty-one thousand, eight hundred seventy-eight".