387625632215 has 4 divisors (see below), whose sum is σ = 465150758664. Its totient is φ = 310100505768.

The previous prime is 387625632203. The next prime is 387625632227. The reversal of 387625632215 is 512236526783.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 512236526783 = 17 ⋅30131560399.

It is an interprime number because it is at equal distance from previous prime (387625632203) and next prime (387625632227).

It is a cyclic number.

It is not a de Polignac number, because 387625632215 - 2¹⁴ = 387625615831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38762563217 + ... + 38762563226.

It is an arithmetic number, because the mean of its divisors is an integer number (116287689666).

Almost surely, 2^387625632215 is an apocalyptic number.

387625632215 is a deficient number, since it is larger than the sum of its proper divisors (77525126449).

387625632215 is an equidigital number, since it uses as much as digits as its factorization.

387625632215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77525126448.

The product of its digits is 3628800, while the sum is 50.

The spelling of 387625632215 in words is "three hundred eighty-seven billion, six hundred twenty-five million, six hundred thirty-two thousand, two hundred fifteen".