74451501601 has 4 divisors (see below), whose sum is σ = 74763014400. Its totient is φ = 74139988804.

The previous prime is 74451501583. The next prime is 74451501617. The reversal of 74451501601 is 10610515447.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 74451501601 - 2¹⁷ = 74451370529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74451501401) 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, 155756041 + ... + 155756518.

It is an arithmetic number, because the mean of its divisors is an integer number (18690753600).

Almost surely, 2^74451501601 is an apocalyptic number.

It is an amenable number.

74451501601 is a deficient number, since it is larger than the sum of its proper divisors (311512799).

74451501601 is a wasteful number, since it uses less digits than its factorization.

74451501601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311512798.

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 74451501601 in words is "seventy-four billion, four hundred fifty-one million, five hundred one thousand, six hundred one".