351648561541 has 4 divisors (see below), whose sum is σ = 351860783212. Its totient is φ = 351436339872.

The previous prime is 351648561529. The next prime is 351648561553. The reversal of 351648561541 is 145165846153.

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

It is an interprime number because it is at equal distance from previous prime (351648561529) and next prime (351648561553).

It can be written as a sum of positive squares in 2 ways, for example, as 177464200225 + 174184361316 = 421265^2 + 417354^2 .

It is a cyclic number.

It is not a de Polignac number, because 351648561541 - 2⁹ = 351648561029 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 (351648561581) 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, 106108350 + ... + 106111663.

It is an arithmetic number, because the mean of its divisors is an integer number (87965195803).

Almost surely, 2^351648561541 is an apocalyptic number.

It is an amenable number.

351648561541 is a deficient number, since it is larger than the sum of its proper divisors (212221671).

351648561541 is a wasteful number, since it uses less digits than its factorization.

351648561541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212221670.

The product of its digits is 1728000, while the sum is 49.

The spelling of 351648561541 in words is "three hundred fifty-one billion, six hundred forty-eight million, five hundred sixty-one thousand, five hundred forty-one".