11736890420 has 96 divisors (see below), whose sum is σ = 26049171456. Its totient is φ = 4436812800.

The previous prime is 11736890383. The next prime is 11736890449. The reversal of 11736890420 is 2409863711.

Together with 14312281035 it forms a betrothed pair.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4476710 + ... + 4479330.

It is an arithmetic number, because the mean of its divisors is an integer number (271345536).

Almost surely, 2^11736890420 is an apocalyptic number.

11736890420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11736890420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13024585728).

11736890420 is an abundant number, since it is smaller than the sum of its proper divisors (14312281036).

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

11736890420 is a wasteful number, since it uses less digits than its factorization.

11736890420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841 (or 2839 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The spelling of 11736890420 in words is "eleven billion, seven hundred thirty-six million, eight hundred ninety thousand, four hundred twenty".