61694273084905 has 16 divisors (see below), whose sum is σ = 74854293341184. Its totient is φ = 48808762974720.

The previous prime is 61694273084861. The next prime is 61694273084909. The reversal of 61694273084905 is 50948037249616.

It is not a de Polignac number, because 61694273084905 - 2²⁷ = 61694138867177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61694273084909) 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, 48639817 + ... + 49892086.

It is an arithmetic number, because the mean of its divisors is an integer number (4678393333824).

It is a 1-persistent number, because it is pandigital, but 2⋅61694273084905 = 123388546169810 is not.

Almost surely, 2^{61694273084905} is an apocalyptic number.

It is an amenable number.

61694273084905 is a deficient number, since it is larger than the sum of its proper divisors (13160020256279).

61694273084905 is a wasteful number, since it uses less digits than its factorization.

61694273084905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98533296.

The product of its (nonzero) digits is 78382080, while the sum is 64.

The spelling of 61694273084905 in words is "sixty-one trillion, six hundred ninety-four billion, two hundred seventy-three million, eighty-four thousand, nine hundred five".