11372820858 has 48 divisors (see below), whose sum is σ = 28816197696. Its totient is φ = 3173808960.

The previous prime is 11372820857. The next prime is 11372820881. The reversal of 11372820858 is 85802827311.

It is not an unprimeable number, because it can be changed into a prime (11372820853) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1044123 + ... + 1054958.

It is an arithmetic number, because the mean of its divisors is an integer number (600337452).

Almost surely, 2^11372820858 is an apocalyptic number.

11372820858 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11372820858 is an abundant number, since it is smaller than the sum of its proper divisors (17443376838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11372820858 is a wasteful number, since it uses less digits than its factorization.

11372820858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2099139 (or 2099136 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 11372820858 in words is "eleven billion, three hundred seventy-two million, eight hundred twenty thousand, eight hundred fifty-eight".