61621417091834 has 32 divisors (see below), whose sum is σ = 95883655500864. Its totient is φ = 29679979271040.

The previous prime is 61621417091807. The next prime is 61621417091851. The reversal of 61621417091834 is 43819071412616.

61621417091834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 97502537 + ... + 98132499.

It is an arithmetic number, because the mean of its divisors is an integer number (2996364234402).

Almost surely, 2^{61621417091834} is an apocalyptic number.

61621417091834 is a deficient number, since it is larger than the sum of its proper divisors (34262238409030).

61621417091834 is a wasteful number, since it uses less digits than its factorization.

61621417091834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645662.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 61621417091834 in words is "sixty-one trillion, six hundred twenty-one billion, four hundred seventeen million, ninety-one thousand, eight hundred thirty-four".