11861467869 has 16 divisors (see below), whose sum is σ = 15889263104. Its totient is φ = 7870694400.

The previous prime is 11861467867. The next prime is 11861467903. The reversal of 11861467869 is 96876416811.

It is not a de Polignac number, because 11861467869 - 2¹ = 11861467867 is a prime.

It is a super-2 number, since 2×11861467869² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11861467861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2045364 + ... + 2051154.

It is an arithmetic number, because the mean of its divisors is an integer number (993078944).

Almost surely, 2^11861467869 is an apocalyptic number.

It is an amenable number.

11861467869 is a deficient number, since it is larger than the sum of its proper divisors (4027795235).

11861467869 is a wasteful number, since it uses less digits than its factorization.

11861467869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8868.

The product of its digits is 3483648, while the sum is 57.

The spelling of 11861467869 in words is "eleven billion, eight hundred sixty-one million, four hundred sixty-seven thousand, eight hundred sixty-nine".