109749614061025 has 9 divisors (see below), whose sum is σ = 136089586387801. Its totient is φ = 87799649344240.

The previous prime is 109749614060953. The next prime is 109749614061041. The reversal of 109749614061025 is 520160416947901.

The square root of 109749614061025 is 10476145.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 28141083403489 + 81608530657536 = 5304817^2 + 9033744^2 .

It is not a de Polignac number, because 109749614061025 - 2¹⁷ = 109749613929953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 51333111 + ... + 53428339.

Almost surely, 2^{109749614061025} is an apocalyptic number.

109749614061025 is the 10476145-th square number.

109749614061025 is the 5238073-rd centered octagonal number.

It is an amenable number.

109749614061025 is a deficient number, since it is larger than the sum of its proper divisors (26339972326776).

109749614061025 is an frugal number, since it uses more digits than its factorization.

109749614061025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4190468 (or 2095234 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 109749614061025 in words is "one hundred nine trillion, seven hundred forty-nine billion, six hundred fourteen million, sixty-one thousand, twenty-five".