7457972121623 has 2 divisors, whose sum is σ = 7457972121624. Its totient is φ = 7457972121622.

The previous prime is 7457972121577. The next prime is 7457972121643. The reversal of 7457972121623 is 3261212797547.

It is a strong prime.

It is an emirp because it is prime and its reverse (3261212797547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7457972121623 - 2¹² = 7457972117527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7457972121643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3728986060811 + 3728986060812.

It is an arithmetic number, because the mean of its divisors is an integer number (3728986060812).

Almost surely, 2^{7457972121623} is an apocalyptic number.

7457972121623 is a deficient number, since it is larger than the sum of its proper divisors (1).

7457972121623 is an equidigital number, since it uses as much as digits as its factorization.

7457972121623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8890560, while the sum is 56.

The spelling of 7457972121623 in words is "seven trillion, four hundred fifty-seven billion, nine hundred seventy-two million, one hundred twenty-one thousand, six hundred twenty-three".