78436778230 has 16 divisors (see below), whose sum is σ = 142481489040. Its totient is φ = 31086869472.

The previous prime is 78436778219. The next prime is 78436778249. The reversal of 78436778230 is 3287763487.

It is a congruent number.

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, 35979084 + ... + 35981263.

It is an arithmetic number, because the mean of its divisors is an integer number (8905093065).

Almost surely, 2^78436778230 is an apocalyptic number.

78436778230 is a deficient number, since it is larger than the sum of its proper divisors (64044710810).

78436778230 is a wasteful number, since it uses less digits than its factorization.

78436778230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71960463.

The product of its (nonzero) digits is 9483264, while the sum is 55.

The spelling of 78436778230 in words is "seventy-eight billion, four hundred thirty-six million, seven hundred seventy-eight thousand, two hundred thirty".