15430540205 has 16 divisors (see below), whose sum is σ = 19494578880. Its totient is φ = 11692703232.

The previous prime is 15430540187. The next prime is 15430540261. The reversal of 15430540205 is 50204503451.

It is a cyclic number.

It is not a de Polignac number, because 15430540205 - 2⁶ = 15430540141 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 763997 + ... + 783933.

It is an arithmetic number, because the mean of its divisors is an integer number (1218411180).

Almost surely, 2^15430540205 is an apocalyptic number.

It is an amenable number.

15430540205 is a deficient number, since it is larger than the sum of its proper divisors (4064038675).

15430540205 is a wasteful number, since it uses less digits than its factorization.

15430540205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28108.

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 15430540205 in words is "fifteen billion, four hundred thirty million, five hundred forty thousand, two hundred five".