345513415421402 has 4 divisors (see below), whose sum is σ = 518270123132106. Its totient is φ = 172756707710700.

The previous prime is 345513415421393. The next prime is 345513415421441. The reversal of 345513415421402 is 204124514315543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 215131478704321 + 130381936717081 = 14667361^2 + 11418491^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86378353855349 + ... + 86378353855352.

Almost surely, 2^{345513415421402} is an apocalyptic number.

345513415421402 is a deficient number, since it is larger than the sum of its proper divisors (172756707710704).

345513415421402 is a wasteful number, since it uses less digits than its factorization.

345513415421402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172756707710703.

The product of its (nonzero) digits is 1152000, while the sum is 44.

Adding to 345513415421402 its reverse (204124514315543), we get a palindrome (549637929736945).

The spelling of 345513415421402 in words is "three hundred forty-five trillion, five hundred thirteen billion, four hundred fifteen million, four hundred twenty-one thousand, four hundred two".