74670732661 has 8 divisors (see below), whose sum is σ = 85339674560. Its totient is φ = 64002214368.

The previous prime is 74670732601. The next prime is 74670732727. The reversal of 74670732661 is 16623707647.

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

It is a cyclic number.

It is not a de Polignac number, because 74670732661 - 2⁷ = 74670732533 is a prime.

It is a super-2 number, since 2×74670732661² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74670732601) 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, 512905 + ... + 642193.

It is an arithmetic number, because the mean of its divisors is an integer number (10667459320).

Almost surely, 2^74670732661 is an apocalyptic number.

It is an amenable number.

74670732661 is a deficient number, since it is larger than the sum of its proper divisors (10668941899).

74670732661 is a wasteful number, since it uses less digits than its factorization.

74670732661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211803.

The product of its (nonzero) digits is 1778112, while the sum is 49.

The spelling of 74670732661 in words is "seventy-four billion, six hundred seventy million, seven hundred thirty-two thousand, six hundred sixty-one".