11204791640 has 32 divisors (see below), whose sum is σ = 28812322080. Its totient is φ = 3841642752.

The previous prime is 11204791603. The next prime is 11204791643. The reversal of 11204791640 is 4619740211.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 11204791640.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11204791643) 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, 20008277 + ... + 20008836.

It is an arithmetic number, because the mean of its divisors is an integer number (900385065).

Almost surely, 2^11204791640 is an apocalyptic number.

11204791640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11204791640 is an abundant number, since it is smaller than the sum of its proper divisors (17607530440).

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

11204791640 is a wasteful number, since it uses less digits than its factorization.

11204791640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40017131 (or 40017127 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 11204791640 in words is "eleven billion, two hundred four million, seven hundred ninety-one thousand, six hundred forty".