3312973781 has 8 divisors (see below), whose sum is σ = 3568266240. Its totient is φ = 3057745392.

The previous prime is 3312973777. The next prime is 3312973823. The reversal of 3312973781 is 1873792133.

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

It is not a de Polignac number, because 3312973781 - 2² = 3312973777 is a prime.

It is a super-2 number, since 2×3312973781² = 21951590547186871922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3312973711) 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, 183560 + ... + 200798.

It is an arithmetic number, because the mean of its divisors is an integer number (446033280).

Almost surely, 2^3312973781 is an apocalyptic number.

It is an amenable number.

3312973781 is a deficient number, since it is larger than the sum of its proper divisors (255292459).

3312973781 is a wasteful number, since it uses less digits than its factorization.

3312973781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32035.

The product of its digits is 190512, while the sum is 44.

The square root of 3312973781 is about 57558.4379652541. The cubic root of 3312973781 is about 1490.7540559626.

The spelling of 3312973781 in words is "three billion, three hundred twelve million, nine hundred seventy-three thousand, seven hundred eighty-one".