78272083619 has 2 divisors, whose sum is σ = 78272083620. Its totient is φ = 78272083618.

The previous prime is 78272083597. The next prime is 78272083627. The reversal of 78272083619 is 91638027287.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78272083619 - 2³⁶ = 9552606883 is a prime.

It is a super-2 number, since 2×78272083619² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (78272083639) 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, 39136041809 + 39136041810.

It is an arithmetic number, because the mean of its divisors is an integer number (39136041810).

Almost surely, 2^78272083619 is an apocalyptic number.

78272083619 is a deficient number, since it is larger than the sum of its proper divisors (1).

78272083619 is an equidigital number, since it uses as much as digits as its factorization.

78272083619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The spelling of 78272083619 in words is "seventy-eight billion, two hundred seventy-two million, eighty-three thousand, six hundred nineteen".