64500035142 has 32 divisors (see below), whose sum is σ = 134626302720. Its totient is φ = 20562549920.

The previous prime is 64500035137. The next prime is 64500035143. The reversal of 64500035142 is 24153000546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64500035143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1217584 + ... + 1269452.

It is an arithmetic number, because the mean of its divisors is an integer number (4207071960).

Almost surely, 2^64500035142 is an apocalyptic number.

64500035142 is an abundant number, since it is smaller than the sum of its proper divisors (70126267578).

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

64500035142 is a wasteful number, since it uses less digits than its factorization.

64500035142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60908.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 64500035142 its reverse (24153000546), we get a palindrome (88653035688).

The spelling of 64500035142 in words is "sixty-four billion, five hundred million, thirty-five thousand, one hundred forty-two".