74214453661 has 8 divisors (see below), whose sum is σ = 76056694560. Its totient is φ = 72377500272.

The previous prime is 74214453629. The next prime is 74214453667. The reversal of 74214453661 is 16635441247.

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 74214453661 - 2⁵ = 74214453629 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74214453667) 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, 1293451 + ... + 1349608.

It is an arithmetic number, because the mean of its divisors is an integer number (9507086820).

Almost surely, 2^74214453661 is an apocalyptic number.

It is an amenable number.

74214453661 is a deficient number, since it is larger than the sum of its proper divisors (1842240899).

74214453661 is a wasteful number, since it uses less digits than its factorization.

74214453661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643755.

The product of its digits is 483840, while the sum is 43.

The spelling of 74214453661 in words is "seventy-four billion, two hundred fourteen million, four hundred fifty-three thousand, six hundred sixty-one".