352403643987 has 24 divisors (see below), whose sum is σ = 513623335680. Its totient is φ = 232823107440.

The previous prime is 352403643961. The next prime is 352403644013. The reversal of 352403643987 is 789346304253.

352403643987 is a `hidden beast` number, since 3 + 5 + 240 + 3 + 6 + 4 + 398 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (352403643961) and next prime (352403644013).

It is not a de Polignac number, because 352403643987 - 2⁸ = 352403643731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (352403643187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 143314 + ... + 851672.

It is an arithmetic number, because the mean of its divisors is an integer number (21400972320).

Almost surely, 2^352403643987 is an apocalyptic number.

352403643987 is a deficient number, since it is larger than the sum of its proper divisors (161219691693).

352403643987 is a wasteful number, since it uses less digits than its factorization.

352403643987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708863 (or 708860 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 54.

The spelling of 352403643987 in words is "three hundred fifty-two billion, four hundred three million, six hundred forty-three thousand, nine hundred eighty-seven".