387780928445 has 8 divisors (see below), whose sum is σ = 465689917440. Its totient is φ = 309989540560.

The previous prime is 387780928373. The next prime is 387780928453. The reversal of 387780928445 is 544829087783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 387780928445 - 2¹⁴ = 387780912061 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29393021 + ... + 29406210.

It is an arithmetic number, because the mean of its divisors is an integer number (58211239680).

Almost surely, 2^387780928445 is an apocalyptic number.

It is an amenable number.

387780928445 is a deficient number, since it is larger than the sum of its proper divisors (77908988995).

387780928445 is a wasteful number, since it uses less digits than its factorization.

387780928445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58800555.

The product of its (nonzero) digits is 108380160, while the sum is 65.

The spelling of 387780928445 in words is "three hundred eighty-seven billion, seven hundred eighty million, nine hundred twenty-eight thousand, four hundred forty-five".