11503047639 has 8 divisors (see below), whose sum is σ = 15347703280. Its totient is φ = 7663545216.

The previous prime is 11503047613. The next prime is 11503047667. The reversal of 11503047639 is 93674030511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11503047639 - 2⁷ = 11503047511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11503047597 and 11503047606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11503047839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1283092 + ... + 1292025.

It is an arithmetic number, because the mean of its divisors is an integer number (1918462910).

Almost surely, 2^11503047639 is an apocalyptic number.

11503047639 is a deficient number, since it is larger than the sum of its proper divisors (3844655641).

11503047639 is a wasteful number, since it uses less digits than its factorization.

11503047639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2576609.

The product of its (nonzero) digits is 68040, while the sum is 39.

The spelling of 11503047639 in words is "eleven billion, five hundred three million, forty-seven thousand, six hundred thirty-nine".