74425025621 has 8 divisors (see below), whose sum is σ = 75091816800. Its totient is φ = 73760111280.

The previous prime is 74425025603. The next prime is 74425025629. The reversal of 74425025621 is 12652052447.

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 74425025621 - 2²⁶ = 74357916757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74425025629) 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, 389486 + ... + 548223.

It is an arithmetic number, because the mean of its divisors is an integer number (9386477100).

Almost surely, 2^74425025621 is an apocalyptic number.

It is an amenable number.

74425025621 is a deficient number, since it is larger than the sum of its proper divisors (666791179).

74425025621 is a wasteful number, since it uses less digits than its factorization.

74425025621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 938419.

The product of its (nonzero) digits is 134400, while the sum is 38.

The spelling of 74425025621 in words is "seventy-four billion, four hundred twenty-five million, twenty-five thousand, six hundred twenty-one".