11398611040 has 24 divisors (see below), whose sum is σ = 26929218960. Its totient is φ = 4559444352.

The previous prime is 11398611001. The next prime is 11398611071. The reversal of 11398611040 is 4011689311.

It is a junction number, because it is equal to n+sod(n) for n = 11398610987 and 11398611005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35620500 + ... + 35620819.

It is an arithmetic number, because the mean of its divisors is an integer number (1122050790).

Almost surely, 2^11398611040 is an apocalyptic number.

11398611040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11398611040 is an abundant number, since it is smaller than the sum of its proper divisors (15530607920).

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

11398611040 is an equidigital number, since it uses as much as digits as its factorization.

11398611040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71241334 (or 71241326 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 11398611040 in words is "eleven billion, three hundred ninety-eight million, six hundred eleven thousand, forty".