78285541429534 has 16 divisors (see below), whose sum is σ = 127596128647680. Its totient is φ = 35886411181080.

The previous prime is 78285541429471. The next prime is 78285541429723. The reversal of 78285541429534 is 43592414558287.

78285541429534 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×78285541429534² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78285541429534.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33228157324 + ... + 33228159679.

It is an arithmetic number, because the mean of its divisors is an integer number (7974758040480).

Almost surely, 2^{78285541429534} is an apocalyptic number.

78285541429534 is a deficient number, since it is larger than the sum of its proper divisors (49310587218146).

78285541429534 is a wasteful number, since it uses less digits than its factorization.

78285541429534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66456317055.

The product of its digits is 387072000, while the sum is 67.

The spelling of 78285541429534 in words is "seventy-eight trillion, two hundred eighty-five billion, five hundred forty-one million, four hundred twenty-nine thousand, five hundred thirty-four".