78650786433 has 16 divisors (see below), whose sum is σ = 114618226176. Its totient is φ = 47757592320.

The previous prime is 78650786419. The next prime is 78650786441. The reversal of 78650786433 is 33468705687.

It is not a de Polignac number, because 78650786433 - 2⁹ = 78650785921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78650786833) 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, 24872166 + ... + 24875327.

It is an arithmetic number, because the mean of its divisors is an integer number (7163639136).

Almost surely, 2^78650786433 is an apocalyptic number.

It is an amenable number.

78650786433 is a deficient number, since it is larger than the sum of its proper divisors (35967439743).

78650786433 is a wasteful number, since it uses less digits than its factorization.

78650786433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49747544.

The product of its (nonzero) digits is 20321280, while the sum is 57.

The spelling of 78650786433 in words is "seventy-eight billion, six hundred fifty million, seven hundred eighty-six thousand, four hundred thirty-three".