74740653698 has 8 divisors (see below), whose sum is σ = 113948865660. Its totient is φ = 36757698480.

The previous prime is 74740653667. The next prime is 74740653733. The reversal of 74740653698 is 89635604747.

It can be written as a sum of positive squares in 2 ways, for example, as 70343239729 + 4397413969 = 265223^2 + 66313^2 .

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

It is a super-2 number, since 2×74740653698² (a number of 23 digits) contains 22 as substring.

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 306314033 + ... + 306314276.

Almost surely, 2^74740653698 is an apocalyptic number.

74740653698 is a deficient number, since it is larger than the sum of its proper divisors (39208211962).

74740653698 is a wasteful number, since it uses less digits than its factorization.

74740653698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612628372.

The product of its (nonzero) digits is 30481920, while the sum is 59.

The spelling of 74740653698 in words is "seventy-four billion, seven hundred forty million, six hundred fifty-three thousand, six hundred ninety-eight".