109137870250 has 16 divisors (see below), whose sum is σ = 204306093576. Its totient is φ = 43655148000.

The previous prime is 109137870241. The next prime is 109137870269. The reversal of 109137870250 is 52078731901.

It can be written as a sum of positive squares in 4 ways, for example, as 34706572209 + 74431298041 = 186297^2 + 272821^2 .

It is a super-2 number, since 2×109137870250² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 109137870197 and 109137870206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218275491 + ... + 218275990.

Almost surely, 2^109137870250 is an apocalyptic number.

109137870250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

109137870250 is a deficient number, since it is larger than the sum of its proper divisors (95168223326).

109137870250 is an equidigital number, since it uses as much as digits as its factorization.

109137870250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436551498 (or 436551488 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 43.

The spelling of 109137870250 in words is "one hundred nine billion, one hundred thirty-seven million, eight hundred seventy thousand, two hundred fifty".