105487509798 has 24 divisors (see below), whose sum is σ = 249334114536. Its totient is φ = 31965912000.

The previous prime is 105487509793. The next prime is 105487509817. The reversal of 105487509798 is 897905784501.

105487509798 is a `hidden beast` number, since 1 + 0 + 54 + 8 + 7 + 509 + 79 + 8 = 666.

It is a super-2 number, since 2×105487509798² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105487509793) 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, 266382403 + ... + 266382798.

It is an arithmetic number, because the mean of its divisors is an integer number (10388921439).

Almost surely, 2^105487509798 is an apocalyptic number.

105487509798 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

105487509798 is an abundant number, since it is smaller than the sum of its proper divisors (143846604738).

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

105487509798 is a wasteful number, since it uses less digits than its factorization.

105487509798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532765220 (or 532765217 counting only the distinct ones).

The product of its (nonzero) digits is 25401600, while the sum is 63.

The spelling of 105487509798 in words is "one hundred five billion, four hundred eighty-seven million, five hundred nine thousand, seven hundred ninety-eight".