78530239734 has 16 divisors (see below), whose sum is σ = 157214623680. Its totient is φ = 26151055880.

The previous prime is 78530239651. The next prime is 78530239817. The reversal of 78530239734 is 43793203587.

It is an interprime number because it is at equal distance from previous prime (78530239651) and next prime (78530239817).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6416052 + ... + 6428279.

It is an arithmetic number, because the mean of its divisors is an integer number (9825913980).

Almost surely, 2^78530239734 is an apocalyptic number.

78530239734 is an abundant number, since it is smaller than the sum of its proper divisors (78684383946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78530239734 is a wasteful number, since it uses less digits than its factorization.

78530239734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12845355.

The product of its (nonzero) digits is 3810240, while the sum is 51.

The spelling of 78530239734 in words is "seventy-eight billion, five hundred thirty million, two hundred thirty-nine thousand, seven hundred thirty-four".