3195278939661 has 8 divisors (see below), whose sum is σ = 4262191822944. Its totient is φ = 2129276008080.

The previous prime is 3195278939641. The next prime is 3195278939663. The reversal of 3195278939661 is 1669398725913.

3195278939661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3195278939661 - 2¹³ = 3195278931469 is a prime.

It is a super-2 number, since 2×3195278939661² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3195278939663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227479731 + ... + 227493776.

It is an arithmetic number, because the mean of its divisors is an integer number (532773977868).

Almost surely, 2^{3195278939661} is an apocalyptic number.

It is an amenable number.

3195278939661 is a deficient number, since it is larger than the sum of its proper divisors (1066912883283).

3195278939661 is a wasteful number, since it uses less digits than its factorization.

3195278939661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454975851.

The product of its digits is 132269760, while the sum is 69.

The spelling of 3195278939661 in words is "three trillion, one hundred ninety-five billion, two hundred seventy-eight million, nine hundred thirty-nine thousand, six hundred sixty-one".