11415919074 has 128 divisors (see below), whose sum is σ = 28438609920. Its totient is φ = 2981318400.

The previous prime is 11415919051. The next prime is 11415919079. The reversal of 11415919074 is 47091951411.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (11415919079) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13382832 + ... + 13383684.

It is an arithmetic number, because the mean of its divisors is an integer number (222176640).

Almost surely, 2^11415919074 is an apocalyptic number.

11415919074 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11415919074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14219304960).

11415919074 is an abundant number, since it is smaller than the sum of its proper divisors (17022690846).

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

11415919074 is a wasteful number, since it uses less digits than its factorization.

11415919074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456.

The product of its (nonzero) digits is 45360, while the sum is 42.

The spelling of 11415919074 in words is "eleven billion, four hundred fifteen million, nine hundred nineteen thousand, seventy-four".