12511519098 has 64 divisors (see below), whose sum is σ = 27560397312. Its totient is φ = 3762432000.

The previous prime is 12511519081. The next prime is 12511519151. The reversal of 12511519098 is 89091511521.

It is a super-2 number, since 2×12511519098² (a number of 21 digits) contains 22 as substring.

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, 3125098 + ... + 3129098.

It is an arithmetic number, because the mean of its divisors is an integer number (430631208).

Almost surely, 2^12511519098 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12511519098, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13780198656).

12511519098 is an abundant number, since it is smaller than the sum of its proper divisors (15048878214).

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

12511519098 is a wasteful number, since it uses less digits than its factorization.

12511519098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4919.

The product of its (nonzero) digits is 32400, while the sum is 42.

The spelling of 12511519098 in words is "twelve billion, five hundred eleven million, five hundred nineteen thousand, ninety-eight".