15213041006638 has 16 divisors (see below), whose sum is σ = 23969409854976. Its totient is φ = 7227618096600.

The previous prime is 15213041006633. The next prime is 15213041006641. The reversal of 15213041006638 is 83660014031251.

It is a self number, because there is not a number n which added to its sum of digits gives 15213041006638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15213041006633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1095086706 + ... + 1095100597.

It is an arithmetic number, because the mean of its divisors is an integer number (1498088115936).

Almost surely, 2^{15213041006638} is an apocalyptic number.

15213041006638 is a deficient number, since it is larger than the sum of its proper divisors (8756368848338).

15213041006638 is a wasteful number, since it uses less digits than its factorization.

15213041006638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2190187479.

The product of its (nonzero) digits is 103680, while the sum is 40.

Adding to 15213041006638 its reverse (83660014031251), we get a palindrome (98873055037889).

The spelling of 15213041006638 in words is "fifteen trillion, two hundred thirteen billion, forty-one million, six thousand, six hundred thirty-eight".