61835453816 has 32 divisors (see below), whose sum is σ = 122180292000. Its totient is φ = 29280662400.

The previous prime is 61835453809. The next prime is 61835453851.

61835453816 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

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, 1645091 + ... + 1682258.

It is an arithmetic number, because the mean of its divisors is an integer number (3818134125).

Almost surely, 2^61835453816 is an apocalyptic number.

It is an amenable number.

61835453816 is a deficient number, since it is larger than the sum of its proper divisors (60344838184).

61835453816 is a wasteful number, since it uses less digits than its factorization.

61835453816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3327479 (or 3327475 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 50.

The spelling of 61835453816 in words is "sixty-one billion, eight hundred thirty-five million, four hundred fifty-three thousand, eight hundred sixteen".