7474835661 has 8 divisors (see below), whose sum is σ = 10287945984. Its totient is φ = 4822474560.

The previous prime is 7474835659. The next prime is 7474835671. The reversal of 7474835661 is 1665384747.

It is a happy number.

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

It is not a de Polignac number, because 7474835661 - 2¹ = 7474835659 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7474835651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40187196 + ... + 40187381.

It is an arithmetic number, because the mean of its divisors is an integer number (1285993248).

Almost surely, 2^7474835661 is an apocalyptic number.

It is an amenable number.

7474835661 is a deficient number, since it is larger than the sum of its proper divisors (2813110323).

7474835661 is a wasteful number, since it uses less digits than its factorization.

7474835661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80374611.

The product of its digits is 3386880, while the sum is 51.

The square root of 7474835661 is about 86457.1319267532. The cubic root of 7474835661 is about 1955.2421440727.

The spelling of 7474835661 in words is "seven billion, four hundred seventy-four million, eight hundred thirty-five thousand, six hundred sixty-one".