11787073020 has 60 divisors (see below), whose sum is σ = 36976489704. Its totient is φ = 3143219040.

The previous prime is 11787072967. The next prime is 11787073033. The reversal of 11787073020 is 2037078711.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3636366 + ... + 3639605.

Almost surely, 2^11787073020 is an apocalyptic number.

11787073020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11787073020 is an abundant number, since it is smaller than the sum of its proper divisors (25189416684).

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

11787073020 is a wasteful number, since it uses less digits than its factorization.

11787073020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7275992 (or 7275981 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 36.

The spelling of 11787073020 in words is "eleven billion, seven hundred eighty-seven million, seventy-three thousand, twenty".