387280665461 has 16 divisors (see below), whose sum is σ = 408152722560. Its totient is φ = 366457815360.

The previous prime is 387280665419. The next prime is 387280665463. The reversal of 387280665461 is 164566082783.

It is a de Polignac number, because none of the positive numbers 2^k-387280665461 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 387280665397 and 387280665406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387280665463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87598031 + ... + 87602451.

It is an arithmetic number, because the mean of its divisors is an integer number (25509545160).

Almost surely, 2^387280665461 is an apocalyptic number.

It is an amenable number.

387280665461 is a deficient number, since it is larger than the sum of its proper divisors (20872057099).

387280665461 is a wasteful number, since it uses less digits than its factorization.

387280665461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8924.

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 387280665461 in words is "three hundred eighty-seven billion, two hundred eighty million, six hundred sixty-five thousand, four hundred sixty-one".