354242077247 has 4 divisors (see below), whose sum is σ = 366457321320. Its totient is φ = 342026833176.

The previous prime is 354242077243. The next prime is 354242077253. The reversal of 354242077247 is 742770242453.

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

It is a cyclic number.

It is not a de Polignac number, because 354242077247 - 2² = 354242077243 is a prime.

It is a super-3 number, since 3×354242077247³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (354242077243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6107621993 + ... + 6107622050.

It is an arithmetic number, because the mean of its divisors is an integer number (91614330330).

Almost surely, 2^354242077247 is an apocalyptic number.

354242077247 is a deficient number, since it is larger than the sum of its proper divisors (12215244073).

354242077247 is a wasteful number, since it uses less digits than its factorization.

354242077247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12215244072.

The product of its (nonzero) digits is 2634240, while the sum is 47.

The spelling of 354242077247 in words is "three hundred fifty-four billion, two hundred forty-two million, seventy-seven thousand, two hundred forty-seven".