10264242640 has 20 divisors (see below), whose sum is σ = 23864364324. Its totient is φ = 4105697024.

The previous prime is 10264242613. The next prime is 10264242649. The reversal of 10264242640 is 4624246201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1766352784 + 8497889856 = 42028^2 + 92184^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10264242649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64151437 + ... + 64151596.

Almost surely, 2^10264242640 is an apocalyptic number.

10264242640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10264242640 is an abundant number, since it is smaller than the sum of its proper divisors (13600121684).

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

10264242640 is a wasteful number, since it uses less digits than its factorization.

10264242640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128303046 (or 128303040 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 10264242640 its reverse (4624246201), we get a palindrome (14888488841).

The spelling of 10264242640 in words is "ten billion, two hundred sixty-four million, two hundred forty-two thousand, six hundred forty".