7661435993674 has 8 divisors (see below), whose sum is σ = 11494879199748. Its totient is φ = 3829809593760.

The previous prime is 7661435993657. The next prime is 7661435993677. The reversal of 7661435993674 is 4763995341667.

It can be written as a sum of positive squares in 2 ways, for example, as 7500165481449 + 161270512225 = 2738643^2 + 401585^2 .

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

It is not an unprimeable number, because it can be changed into a prime (7661435993677) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 454190997 + ... + 454207864.

Almost surely, 2^{7661435993674} is an apocalyptic number.

7661435993674 is a deficient number, since it is larger than the sum of its proper divisors (3833443206074).

7661435993674 is a wasteful number, since it uses less digits than its factorization.

7661435993674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908403080.

The product of its digits is 617258880, while the sum is 70.

The spelling of 7661435993674 in words is "seven trillion, six hundred sixty-one billion, four hundred thirty-five million, nine hundred ninety-three thousand, six hundred seventy-four".