10215344540 has 48 divisors (see below), whose sum is σ = 23497387200. Its totient is φ = 3713160192.

The previous prime is 10215344479. The next prime is 10215344563. The reversal of 10215344540 is 4544351201.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 508160 + ... + 527879.

It is an arithmetic number, because the mean of its divisors is an integer number (489528900).

Almost surely, 2^10215344540 is an apocalyptic number.

10215344540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10215344540 is an abundant number, since it is smaller than the sum of its proper divisors (13282042660).

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

10215344540 is a wasteful number, since it uses less digits than its factorization.

10215344540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036094 (or 1036092 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 10215344540 its reverse (4544351201), we get a palindrome (14759695741).

The spelling of 10215344540 in words is "ten billion, two hundred fifteen million, three hundred forty-four thousand, five hundred forty".