11802826861 has 8 divisors (see below), whose sum is σ = 14282412480. Its totient is φ = 9521608128.

The previous prime is 11802826859. The next prime is 11802826873. The reversal of 11802826861 is 16862820811.

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

It is a cyclic number.

It is not a de Polignac number, because 11802826861 - 2¹ = 11802826859 is a prime.

It is a super-2 number, since 2×11802826861² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11802826811) 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, 49591591 + ... + 49591828.

It is an arithmetic number, because the mean of its divisors is an integer number (1785301560).

Almost surely, 2^11802826861 is an apocalyptic number.

It is an amenable number.

11802826861 is a deficient number, since it is larger than the sum of its proper divisors (2479585619).

11802826861 is an equidigital number, since it uses as much as digits as its factorization.

11802826861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99183443.

The product of its (nonzero) digits is 73728, while the sum is 43.

The spelling of 11802826861 in words is "eleven billion, eight hundred two million, eight hundred twenty-six thousand, eight hundred sixty-one".