351343530251540 has 48 divisors (see below), whose sum is σ = 738883719140112. Its totient is φ = 140335133377536.

The previous prime is 351343530251489. The next prime is 351343530251543. The reversal of 351343530251540 is 45152035343153.

It can be written as a sum of positive squares in 8 ways, for example, as 61325218805764 + 290018311445776 = 7831042^2 + 17029924^2 .

It is a super-2 number, since 2×351343530251540² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 351343530251491 and 351343530251500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351343530251543) 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, 84312494 + ... + 88381466.

It is an arithmetic number, because the mean of its divisors is an integer number (15393410815419).

Almost surely, 2^{351343530251540} is an apocalyptic number.

It is an amenable number.

351343530251540 is an abundant number, since it is smaller than the sum of its proper divisors (387540188888572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

351343530251540 is a wasteful number, since it uses less digits than its factorization.

351343530251540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4075196 (or 4075194 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 44.

Adding to 351343530251540 its reverse (45152035343153), we get a palindrome (396495565594693).

The spelling of 351343530251540 in words is "three hundred fifty-one trillion, three hundred forty-three billion, five hundred thirty million, two hundred fifty-one thousand, five hundred forty".