3495863537991 has 40 divisors (see below), whose sum is σ = 5996802979200. Its totient is φ = 2007194366160.

The previous prime is 3495863537939. The next prime is 3495863537993. The reversal of 3495863537991 is 1997353685943.

3495863537991 is a `hidden beast` number, since 3 + 4 + 9 + 5 + 86 + 3 + 537 + 9 + 9 + 1 = 666.

3495863537991 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3495863537991 - 2⁹ = 3495863537479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3495863537993) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 103233811 + ... + 103267668.

It is an arithmetic number, because the mean of its divisors is an integer number (149920074480).

Almost surely, 2^{3495863537991} is an apocalyptic number.

3495863537991 is a deficient number, since it is larger than the sum of its proper divisors (2500939441209).

3495863537991 is a wasteful number, since it uses less digits than its factorization.

3495863537991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206501521 (or 206501512 counting only the distinct ones).

The product of its digits is 661348800, while the sum is 72.

The spelling of 3495863537991 in words is "three trillion, four hundred ninety-five billion, eight hundred sixty-three million, five hundred thirty-seven thousand, nine hundred ninety-one".