351928420285 has 16 divisors (see below), whose sum is σ = 455487908400. Its totient is φ = 259492400640.

The previous prime is 351928420231. The next prime is 351928420289. The reversal of 351928420285 is 582024829153.

It can be written as a sum of positive squares in 8 ways, for example, as 20905400569 + 331023019716 = 144587^2 + 575346^2 .

It is a de Polignac number, because none of the positive numbers 2^k-351928420285 is a prime.

It is a super-2 number, since 2×351928420285² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351928420289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4052560 + ... + 4138489.

It is an arithmetic number, because the mean of its divisors is an integer number (28467994275).

Almost surely, 2^351928420285 is an apocalyptic number.

It is an amenable number.

351928420285 is a deficient number, since it is larger than the sum of its proper divisors (103559488115).

351928420285 is a wasteful number, since it uses less digits than its factorization.

351928420285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8191728.

The product of its (nonzero) digits is 1382400, while the sum is 49.

The spelling of 351928420285 in words is "three hundred fifty-one billion, nine hundred twenty-eight million, four hundred twenty thousand, two hundred eighty-five".