10815051388 has 12 divisors (see below), whose sum is σ = 18996699960. Its totient is φ = 5387422832.

The previous prime is 10815051383. The next prime is 10815051391. The reversal of 10815051388 is 88315051801.

It is a self number, because there is not a number n which added to its sum of digits gives 10815051388.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10815051383) 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, 5024506 + ... + 5026657.

It is an arithmetic number, because the mean of its divisors is an integer number (1583058330).

Almost surely, 2^10815051388 is an apocalyptic number.

It is an amenable number.

10815051388 is a deficient number, since it is larger than the sum of its proper divisors (8181648572).

10815051388 is a wasteful number, since it uses less digits than its factorization.

10815051388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10051436 (or 10051434 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 40.

The spelling of 10815051388 in words is "ten billion, eight hundred fifteen million, fifty-one thousand, three hundred eighty-eight".