10312415540 has 72 divisors (see below), whose sum is σ = 25332924960. Its totient is φ = 3515873088.

The previous prime is 10312415537. The next prime is 10312415551. The reversal of 10312415540 is 4551421301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146027 + ... + 204813.

It is an arithmetic number, because the mean of its divisors is an integer number (351846180).

Almost surely, 2^10312415540 is an apocalyptic number.

10312415540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10312415540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12666462480).

10312415540 is an abundant number, since it is smaller than the sum of its proper divisors (15020509420).

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

10312415540 is a wasteful number, since it uses less digits than its factorization.

10312415540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58989 (or 58980 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 10312415540 its reverse (4551421301), we get a palindrome (14863836841).

The spelling of 10312415540 in words is "ten billion, three hundred twelve million, four hundred fifteen thousand, five hundred forty".