387746056775 has 48 divisors (see below), whose sum is σ = 634706876160. Its totient is φ = 227493465600.

The previous prime is 387746056771. The next prime is 387746056811. The reversal of 387746056775 is 577650647783.

It is not a de Polignac number, because 387746056775 - 2² = 387746056771 is a prime.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387746056771) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5891585 + ... + 5957034.

It is an arithmetic number, because the mean of its divisors is an integer number (13223059920).

Almost surely, 2^387746056775 is an apocalyptic number.

387746056775 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

387746056775 is a deficient number, since it is larger than the sum of its proper divisors (246960819385).

387746056775 is a wasteful number, since it uses less digits than its factorization.

387746056775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11848664 (or 11848659 counting only the distinct ones).

The product of its (nonzero) digits is 207446400, while the sum is 65.

The spelling of 387746056775 in words is "three hundred eighty-seven billion, seven hundred forty-six million, fifty-six thousand, seven hundred seventy-five".