7616545991 has 2 divisors, whose sum is σ = 7616545992. Its totient is φ = 7616545990.

The previous prime is 7616545931. The next prime is 7616545999. The reversal of 7616545991 is 1995456167.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7616545991 - 2¹⁴ = 7616529607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7616545999) 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 as a sum of consecutive naturals, namely, 3808272995 + 3808272996.

It is an arithmetic number, because the mean of its divisors is an integer number (3808272996).

Almost surely, 2^7616545991 is an apocalyptic number.

7616545991 is a deficient number, since it is larger than the sum of its proper divisors (1).

7616545991 is an equidigital number, since it uses as much as digits as its factorization.

7616545991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2041200, while the sum is 53.

The square root of 7616545991 is about 87272.8250430797. The cubic root of 7616545991 is about 1967.5209087244.

The spelling of 7616545991 in words is "seven billion, six hundred sixteen million, five hundred forty-five thousand, nine hundred ninety-one".