384877581945 has 32 divisors (see below), whose sum is σ = 619894888704. Its totient is φ = 203908972800.

The previous prime is 384877581883. The next prime is 384877581961. The reversal of 384877581945 is 549185778483.

It is not a de Polignac number, because 384877581945 - 2¹⁰ = 384877580921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 384877581945.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1226055 + ... + 1507635.

It is an arithmetic number, because the mean of its divisors is an integer number (19371715272).

Almost surely, 2^384877581945 is an apocalyptic number.

It is an amenable number.

384877581945 is a deficient number, since it is larger than the sum of its proper divisors (235017306759).

384877581945 is a wasteful number, since it uses less digits than its factorization.

384877581945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282193.

The product of its digits is 270950400, while the sum is 69.

The spelling of 384877581945 in words is "three hundred eighty-four billion, eight hundred seventy-seven million, five hundred eighty-one thousand, nine hundred forty-five".