61285542834 has 16 divisors (see below), whose sum is σ = 129022195680. Its totient is φ = 19353329280.

The previous prime is 61285542833. The next prime is 61285542847. The reversal of 61285542834 is 43824558216.

It is not an unprimeable number, because it can be changed into a prime (61285542833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268796127 + ... + 268796354.

It is an arithmetic number, because the mean of its divisors is an integer number (8063887230).

Almost surely, 2^61285542834 is an apocalyptic number.

61285542834 is an abundant number, since it is smaller than the sum of its proper divisors (67736652846).

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

61285542834 is a wasteful number, since it uses less digits than its factorization.

61285542834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537592505.

The product of its digits is 1843200, while the sum is 48.

The spelling of 61285542834 in words is "sixty-one billion, two hundred eighty-five million, five hundred forty-two thousand, eight hundred thirty-four".