11899473515 has 16 divisors (see below), whose sum is σ = 14396030208. Its totient is φ = 9442041696.

The previous prime is 11899473491. The next prime is 11899473559. The reversal of 11899473515 is 51537499811.

11899473515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11899473515 - 2¹⁰ = 11899472491 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395432 + ... + 424458.

It is an arithmetic number, because the mean of its divisors is an integer number (899751888).

Almost surely, 2^11899473515 is an apocalyptic number.

11899473515 is a deficient number, since it is larger than the sum of its proper divisors (2496556693).

11899473515 is a wasteful number, since it uses less digits than its factorization.

11899473515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29698.

The product of its digits is 1360800, while the sum is 53.

The spelling of 11899473515 in words is "eleven billion, eight hundred ninety-nine million, four hundred seventy-three thousand, five hundred fifteen".