351797967442 has 4 divisors (see below), whose sum is σ = 527696951166. Its totient is φ = 175898983720.

The previous prime is 351797967407. The next prime is 351797967449. The reversal of 351797967442 is 244769797153.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244769797153 = 7 ⋅34967113879.

It can be written as a sum of positive squares in only one way, i.e., 343066746961 + 8731220481 = 585719^2 + 93441^2 .

It is a super-3 number, since 3×351797967442³ (a number of 36 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (351797967449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87949491859 + ... + 87949491862.

Almost surely, 2^351797967442 is an apocalyptic number.

351797967442 is a deficient number, since it is larger than the sum of its proper divisors (175898983724).

351797967442 is a wasteful number, since it uses less digits than its factorization.

351797967442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175898983723.

The product of its digits is 80015040, while the sum is 64.

The spelling of 351797967442 in words is "three hundred fifty-one billion, seven hundred ninety-seven million, nine hundred sixty-seven thousand, four hundred forty-two".