351451772231 has 8 divisors (see below), whose sum is σ = 407316340224. Its totient is φ = 297001497240.

The previous prime is 351451772227. The next prime is 351451772249. The reversal of 351451772231 is 132277154153.

It is a happy number.

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

It is not a de Polignac number, because 351451772231 - 2² = 351451772227 is a prime.

It is a super-2 number, since 2×351451772231² (a number of 24 digits) 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 (351451772261) 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, 353572715 + ... + 353573708.

It is an arithmetic number, because the mean of its divisors is an integer number (50914542528).

Almost surely, 2^351451772231 is an apocalyptic number.

351451772231 is a deficient number, since it is larger than the sum of its proper divisors (55864567993).

351451772231 is an equidigital number, since it uses as much as digits as its factorization.

351451772231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707146501.

The product of its digits is 176400, while the sum is 41.

The spelling of 351451772231 in words is "three hundred fifty-one billion, four hundred fifty-one million, seven hundred seventy-two thousand, two hundred thirty-one".