351540672773 has 2 divisors, whose sum is σ = 351540672774. Its totient is φ = 351540672772.

The previous prime is 351540672713. The next prime is 351540672803. The reversal of 351540672773 is 377276045153.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 347201420644 + 4339252129 = 589238^2 + 65873^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-351540672773 is a prime.

It is a super-2 number, since 2×351540672773² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351540672713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175770336386 + 175770336387.

It is an arithmetic number, because the mean of its divisors is an integer number (175770336387).

Almost surely, 2^351540672773 is an apocalyptic number.

It is an amenable number.

351540672773 is a deficient number, since it is larger than the sum of its proper divisors (1).

351540672773 is an equidigital number, since it uses as much as digits as its factorization.

351540672773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3704400, while the sum is 50.

The spelling of 351540672773 in words is "three hundred fifty-one billion, five hundred forty million, six hundred seventy-two thousand, seven hundred seventy-three".