7542320407 has 2 divisors, whose sum is σ = 7542320408. Its totient is φ = 7542320406.

The previous prime is 7542320399. The next prime is 7542320411. The reversal of 7542320407 is 7040232457.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7542320407 - 2³ = 7542320399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7542320477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3771160203 + 3771160204.

It is an arithmetic number, because the mean of its divisors is an integer number (3771160204).

Almost surely, 2^7542320407 is an apocalyptic number.

7542320407 is a deficient number, since it is larger than the sum of its proper divisors (1).

7542320407 is an equidigital number, since it uses as much as digits as its factorization.

7542320407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 34.

The square root of 7542320407 is about 86846.5336498815. The cubic root of 7542320407 is about 1961.1086681127.

The spelling of 7542320407 in words is "seven billion, five hundred forty-two million, three hundred twenty thousand, four hundred seven".