78533431047830 has 96 divisors (see below), whose sum is σ = 157065800516352. Its totient is φ = 28248285764160.

The previous prime is 78533431047793. The next prime is 78533431047839. The reversal of 78533431047830 is 3874013433587.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78533431047839) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 109691477 + ... + 110405103.

It is an arithmetic number, because the mean of its divisors is an integer number (1636102088712).

Almost surely, 2^{78533431047830} is an apocalyptic number.

78533431047830 is a deficient number, since it is larger than the sum of its proper divisors (78532369468522).

78533431047830 is a wasteful number, since it uses less digits than its factorization.

78533431047830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714642 (or 714631 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 56.

The spelling of 78533431047830 in words is "seventy-eight trillion, five hundred thirty-three billion, four hundred thirty-one million, forty-seven thousand, eight hundred thirty".