11728630098 has 24 divisors (see below), whose sum is σ = 25523988048. Its totient is φ = 3892319352.

The previous prime is 11728630091. The next prime is 11728630141. The reversal of 11728630098 is 89003682711.

11728630098 is a `hidden beast` number, since 1 + 1 + 7 + 2 + 8 + 630 + 0 + 9 + 8 = 666.

It is a super-2 number, since 2×11728630098² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11728630091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1431136 + ... + 1439307.

It is an arithmetic number, because the mean of its divisors is an integer number (1063499502).

Almost surely, 2^11728630098 is an apocalyptic number.

11728630098 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11728630098 is an abundant number, since it is smaller than the sum of its proper divisors (13795357950).

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

11728630098 is a wasteful number, since it uses less digits than its factorization.

11728630098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870678 (or 2870675 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 11728630098 in words is "eleven billion, seven hundred twenty-eight million, six hundred thirty thousand, ninety-eight".