11239867620 has 72 divisors (see below), whose sum is σ = 35888711040. Its totient is φ = 2839544640.

The previous prime is 11239867591. The next prime is 11239867637. The reversal of 11239867620 is 2676893211.

11239867620 is a `hidden beast` number, since 1 + 12 + 3 + 9 + 8 + 6 + 7 + 620 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1639836 + ... + 1646675.

It is an arithmetic number, because the mean of its divisors is an integer number (498454320).

Almost surely, 2^11239867620 is an apocalyptic number.

11239867620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11239867620 is an abundant number, since it is smaller than the sum of its proper divisors (24648843420).

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

11239867620 is a wasteful number, since it uses less digits than its factorization.

11239867620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3286545 (or 3286540 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 11239867620 in words is "eleven billion, two hundred thirty-nine million, eight hundred sixty-seven thousand, six hundred twenty".