351970392407 has 4 divisors (see below), whose sum is σ = 364107302520. Its totient is φ = 339833482296.

The previous prime is 351970392289. The next prime is 351970392467. The reversal of 351970392407 is 704293079153.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-351970392407 is a prime.

It is a super-2 number, since 2×351970392407² (a number of 24 digits) contains 22 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 (351970392467) 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, 6068455013 + ... + 6068455070.

It is an arithmetic number, because the mean of its divisors is an integer number (91026825630).

Almost surely, 2^351970392407 is an apocalyptic number.

351970392407 is a deficient number, since it is larger than the sum of its proper divisors (12136910113).

351970392407 is a wasteful number, since it uses less digits than its factorization.

351970392407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12136910112.

The product of its (nonzero) digits is 1428840, while the sum is 50.

The spelling of 351970392407 in words is "three hundred fifty-one billion, nine hundred seventy million, three hundred ninety-two thousand, four hundred seven".