11990535047 has 8 divisors (see below), whose sum is σ = 12697081200. Its totient is φ = 11284124544.

The previous prime is 11990535041. The next prime is 11990535059. The reversal of 11990535047 is 74053509911.

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

It is not a de Polignac number, because 11990535047 - 2⁴ = 11990535031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11990534989 and 11990535007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11990535041) 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, 190604 + ... + 245582.

It is an arithmetic number, because the mean of its divisors is an integer number (1587135150).

Almost surely, 2^11990535047 is an apocalyptic number.

11990535047 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

11990535047 is a deficient number, since it is larger than the sum of its proper divisors (706546153).

11990535047 is a wasteful number, since it uses less digits than its factorization.

11990535047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67825.

The product of its (nonzero) digits is 170100, while the sum is 44.

The spelling of 11990535047 in words is "eleven billion, nine hundred ninety million, five hundred thirty-five thousand, forty-seven".