331787303349 has 8 divisors (see below), whose sum is σ = 468405604800. Its totient is φ = 208180268736.

The previous prime is 331787303329. The next prime is 331787303389. The reversal of 331787303349 is 943303787133.

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

It is not a de Polignac number, because 331787303349 - 2⁸ = 331787303093 is a prime.

It is a super-2 number, since 2×331787303349² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51), and also a Moran number because the ratio is a prime number: 6505633399 = 331787303349 / (3 + 3 + 1 + 7 + 8 + 7 + 3 + 0 + 3 + 3 + 4 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331787303329) 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, 3252816649 + ... + 3252816750.

It is an arithmetic number, because the mean of its divisors is an integer number (58550700600).

Almost surely, 2^331787303349 is an apocalyptic number.

It is an amenable number.

331787303349 is a deficient number, since it is larger than the sum of its proper divisors (136618301451).

331787303349 is a wasteful number, since it uses less digits than its factorization.

331787303349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6505633419.

The product of its (nonzero) digits is 3429216, while the sum is 51.

The spelling of 331787303349 in words is "three hundred thirty-one billion, seven hundred eighty-seven million, three hundred three thousand, three hundred forty-nine".