78791609626 has 16 divisors (see below), whose sum is σ = 118821585600. Its totient is φ = 39184489728.

The previous prime is 78791609621. The next prime is 78791609641. The reversal of 78791609626 is 62690619787.

It is not an unprimeable number, because it can be changed into a prime (78791609621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2539515 + ... + 2570353.

It is an arithmetic number, because the mean of its divisors is an integer number (7426349100).

Almost surely, 2^78791609626 is an apocalyptic number.

78791609626 is a deficient number, since it is larger than the sum of its proper divisors (40029975974).

78791609626 is a wasteful number, since it uses less digits than its factorization.

78791609626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37653.

The product of its (nonzero) digits is 13716864, while the sum is 61.

The spelling of 78791609626 in words is "seventy-eight billion, seven hundred ninety-one million, six hundred nine thousand, six hundred twenty-six".