7265621407 has 8 divisors (see below), whose sum is σ = 7940217600. Its totient is φ = 6593372760.

The previous prime is 7265621369. The next prime is 7265621417. The reversal of 7265621407 is 7041265627.

7265621407 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 a de Polignac number, because none of the positive numbers 2^k-7265621407 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7265621407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7265621417) 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, 580407 + ... + 592792.

It is an arithmetic number, because the mean of its divisors is an integer number (992527200).

Almost surely, 2^7265621407 is an apocalyptic number.

7265621407 is a deficient number, since it is larger than the sum of its proper divisors (674596193).

7265621407 is a wasteful number, since it uses less digits than its factorization.

7265621407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173773.

The product of its (nonzero) digits is 141120, while the sum is 40.

The square root of 7265621407 is about 85238.6145300356. The cubic root of 7265621407 is about 1936.8274044819.

The spelling of 7265621407 in words is "seven billion, two hundred sixty-five million, six hundred twenty-one thousand, four hundred seven".