74555580393551 has 8 divisors (see below), whose sum is σ = 75513431731200. Its totient is φ = 73598081801400.

The previous prime is 74555580393533. The next prime is 74555580393557. The reversal of 74555580393551 is 15539308555547.

It is a happy number.

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 74555580393551 - 2⁶ = 74555580393487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74555580393557) 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, 87760931 + ... + 88606388.

It is an arithmetic number, because the mean of its divisors is an integer number (9439178966400).

Almost surely, 2^{74555580393551} is an apocalyptic number.

74555580393551 is a deficient number, since it is larger than the sum of its proper divisors (957851337649).

74555580393551 is a wasteful number, since it uses less digits than its factorization.

74555580393551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176372749.

The product of its (nonzero) digits is 283500000, while the sum is 65.

The spelling of 74555580393551 in words is "seventy-four trillion, five hundred fifty-five billion, five hundred eighty million, three hundred ninety-three thousand, five hundred fifty-one".