61285542835 has 16 divisors (see below), whose sum is σ = 81243901440. Its totient is φ = 44007107040.

The previous prime is 61285542833. The next prime is 61285542847. The reversal of 61285542835 is 53824558216.

It is not a de Polignac number, because 61285542835 - 2¹ = 61285542833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61285542833) 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, 7048077 + ... + 7056766.

It is an arithmetic number, because the mean of its divisors is an integer number (5077743840).

Almost surely, 2^61285542835 is an apocalyptic number.

61285542835 is a deficient number, since it is larger than the sum of its proper divisors (19958358605).

61285542835 is a wasteful number, since it uses less digits than its factorization.

61285542835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14104938.

The product of its digits is 2304000, while the sum is 49.

The spelling of 61285542835 in words is "sixty-one billion, two hundred eighty-five million, five hundred forty-two thousand, eight hundred thirty-five".