7372421657 has 8 divisors (see below), whose sum is σ = 7419576000. Its totient is φ = 7325382960.

The previous prime is 7372421653. The next prime is 7372421663. The reversal of 7372421657 is 7561242737.

7372421657 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7372421657 - 2² = 7372421653 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7372421653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100844 + ... + 157842.

It is an arithmetic number, because the mean of its divisors is an integer number (927447000).

Almost surely, 2^7372421657 is an apocalyptic number.

It is an amenable number.

7372421657 is a deficient number, since it is larger than the sum of its proper divisors (47154343).

7372421657 is a wasteful number, since it uses less digits than its factorization.

7372421657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57823.

The product of its digits is 493920, while the sum is 44.

The square root of 7372421657 is about 85862.8071809908. The cubic root of 7372421657 is about 1946.2713457896.

The spelling of 7372421657 in words is "seven billion, three hundred seventy-two million, four hundred twenty-one thousand, six hundred fifty-seven".