109697732618 has 8 divisors (see below), whose sum is σ = 166800662148. Its totient is φ = 54097511904.

The previous prime is 109697732591. The next prime is 109697732633. The reversal of 109697732618 is 816237796901.

It can be written as a sum of positive squares in 2 ways, for example, as 97751898409 + 11945834209 = 312653^2 + 109297^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×109697732618² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375677021 + ... + 375677312.

Almost surely, 2^109697732618 is an apocalyptic number.

109697732618 is a deficient number, since it is larger than the sum of its proper divisors (57102929530).

109697732618 is an equidigital number, since it uses as much as digits as its factorization.

109697732618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751354408.

The product of its (nonzero) digits is 6858432, while the sum is 59.

The spelling of 109697732618 in words is "one hundred nine billion, six hundred ninety-seven million, seven hundred thirty-two thousand, six hundred eighteen".