109291496725 has 6 divisors (see below), whose sum is σ = 135521455970. Its totient is φ = 87433197360.

The previous prime is 109291496663. The next prime is 109291496737. The reversal of 109291496725 is 527694192901.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1787513841 + 107503982884 = 42279^2 + 327878^2 .

It is not a de Polignac number, because 109291496725 - 2²¹ = 109289399573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2185829910 + ... + 2185829959.

Almost surely, 2^109291496725 is an apocalyptic number.

It is an amenable number.

109291496725 is a deficient number, since it is larger than the sum of its proper divisors (26229959245).

109291496725 is an equidigital number, since it uses as much as digits as its factorization.

109291496725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4371659879 (or 4371659874 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 55.

The spelling of 109291496725 in words is "one hundred nine billion, two hundred ninety-one million, four hundred ninety-six thousand, seven hundred twenty-five".