61434043698 has 16 divisors (see below), whose sum is σ = 123263165376. Its totient is φ = 20412168240.

The previous prime is 61434043597. The next prime is 61434043703. The reversal of 61434043698 is 89634043416.

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, 16459561 + ... + 16463292.

It is an arithmetic number, because the mean of its divisors is an integer number (7703947836).

Almost surely, 2^61434043698 is an apocalyptic number.

61434043698 is an abundant number, since it is smaller than the sum of its proper divisors (61829121678).

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

61434043698 is a wasteful number, since it uses less digits than its factorization.

61434043698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32923169.

The product of its (nonzero) digits is 1492992, while the sum is 48.

The spelling of 61434043698 in words is "sixty-one billion, four hundred thirty-four million, forty-three thousand, six hundred ninety-eight".