15413720505 has 16 divisors (see below), whose sum is σ = 25009305984. Its totient is φ = 8104866560.

The previous prime is 15413720477. The next prime is 15413720527. The reversal of 15413720505 is 50502731451.

It is not a de Polignac number, because 15413720505 - 2¹⁴ = 15413704121 is a prime.

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, 7235424 + ... + 7237553.

It is an arithmetic number, because the mean of its divisors is an integer number (1563081624).

Almost surely, 2^15413720505 is an apocalyptic number.

15413720505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15413720505 is a deficient number, since it is larger than the sum of its proper divisors (9595585479).

15413720505 is a wasteful number, since it uses less digits than its factorization.

15413720505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14473056.

The product of its (nonzero) digits is 21000, while the sum is 33.

The spelling of 15413720505 in words is "fifteen billion, four hundred thirteen million, seven hundred twenty thousand, five hundred five".