78385105030 has 64 divisors (see below), whose sum is σ = 145488752640. Its totient is φ = 30388089600.

The previous prime is 78385104997. The next prime is 78385105063. The reversal of 78385105030 is 3050158387.

It is an interprime number because it is at equal distance from previous prime (78385104997) and next prime (78385105063).

It is a super-2 number, since 2×78385105030² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48776487 + ... + 48778093.

It is an arithmetic number, because the mean of its divisors is an integer number (2273261760).

Almost surely, 2^78385105030 is an apocalyptic number.

78385105030 is a deficient number, since it is larger than the sum of its proper divisors (67103647610).

78385105030 is a wasteful number, since it uses less digits than its factorization.

78385105030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2365.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 78385105030 in words is "seventy-eight billion, three hundred eighty-five million, one hundred five thousand, thirty".