39545855806894 has 16 divisors (see below), whose sum is σ = 59375427965568. Its totient is φ = 19754048597472.

The previous prime is 39545855806843. The next prime is 39545855806913. The reversal of 39545855806894 is 49860855854593.

It is a super-2 number, since 2×39545855806894² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37577379 + ... + 38615425.

It is an arithmetic number, because the mean of its divisors is an integer number (3710964247848).

Almost surely, 2^{39545855806894} is an apocalyptic number.

39545855806894 is a deficient number, since it is larger than the sum of its proper divisors (19829572158674).

39545855806894 is a wasteful number, since it uses less digits than its factorization.

39545855806894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056219.

The product of its (nonzero) digits is 7464960000, while the sum is 79.

The spelling of 39545855806894 in words is "thirty-nine trillion, five hundred forty-five billion, eight hundred fifty-five million, eight hundred six thousand, eight hundred ninety-four".