78288001426 has 16 divisors (see below), whose sum is σ = 120047028480. Its totient is φ = 38273943040.

The previous prime is 78288001417. The next prime is 78288001499. The reversal of 78288001426 is 62410088287.

It is a happy number.

It is a super-2 number, since 2×78288001426² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 306991 + ... + 500818.

It is an arithmetic number, because the mean of its divisors is an integer number (7502939280).

Almost surely, 2^78288001426 is an apocalyptic number.

78288001426 is a deficient number, since it is larger than the sum of its proper divisors (41759027054).

78288001426 is a wasteful number, since it uses less digits than its factorization.

78288001426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808889.

The product of its (nonzero) digits is 344064, while the sum is 46.

The spelling of 78288001426 in words is "seventy-eight billion, two hundred eighty-eight million, one thousand, four hundred twenty-six".