351405025405 has 32 divisors (see below), whose sum is σ = 489819322368. Its totient is φ = 237032577600.

The previous prime is 351405025379. The next prime is 351405025409. The reversal of 351405025405 is 504520504153.

It is not a de Polignac number, because 351405025405 - 2⁵ = 351405025373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351405025409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 941250 + ... + 1260460.

It is an arithmetic number, because the mean of its divisors is an integer number (15306853824).

Almost surely, 2^351405025405 is an apocalyptic number.

351405025405 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

351405025405 is a deficient number, since it is larger than the sum of its proper divisors (138414296963).

351405025405 is a wasteful number, since it uses less digits than its factorization.

351405025405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319737.

The product of its (nonzero) digits is 60000, while the sum is 34.

Adding to 351405025405 its reverse (504520504153), we get a palindrome (855925529558).

The spelling of 351405025405 in words is "three hundred fifty-one billion, four hundred five million, twenty-five thousand, four hundred five".