78303426897 has 16 divisors (see below), whose sum is σ = 106602350400. Its totient is φ = 51107614272.

The previous prime is 78303426889. The next prime is 78303426899. The reversal of 78303426897 is 79862430387.

It is not a de Polignac number, because 78303426897 - 2³ = 78303426889 is a prime.

It is a super-2 number, since 2×78303426897² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78303426899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 453022 + ... + 601527.

It is an arithmetic number, because the mean of its divisors is an integer number (6662646900).

Almost surely, 2^78303426897 is an apocalyptic number.

It is an amenable number.

78303426897 is a deficient number, since it is larger than the sum of its proper divisors (28298923503).

78303426897 is a wasteful number, since it uses less digits than its factorization.

78303426897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055072.

The product of its (nonzero) digits is 12192768, while the sum is 57.

The spelling of 78303426897 in words is "seventy-eight billion, three hundred three million, four hundred twenty-six thousand, eight hundred ninety-seven".