351216774045 has 24 divisors (see below), whose sum is σ = 615051787896. Its totient is φ = 185384521728.

The previous prime is 351216774043. The next prime is 351216774059. The reversal of 351216774045 is 540477612153.

351216774045 is a `hidden beast` number, since 3 + 512 + 1 + 67 + 74 + 0 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 37467796356 + 313748977689 = 193566^2 + 560133^2 .

It is not a de Polignac number, because 351216774045 - 2¹ = 351216774043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351216774043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40226652 + ... + 40235381.

It is an arithmetic number, because the mean of its divisors is an integer number (25627157829).

Almost surely, 2^351216774045 is an apocalyptic number.

It is an amenable number.

351216774045 is a deficient number, since it is larger than the sum of its proper divisors (263835013851).

351216774045 is a wasteful number, since it uses less digits than its factorization.

351216774045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80462141 (or 80462138 counting only the distinct ones).

The product of its (nonzero) digits is 705600, while the sum is 45.

The spelling of 351216774045 in words is "three hundred fifty-one billion, two hundred sixteen million, seven hundred seventy-four thousand, forty-five".