1004641864555 has 12 divisors (see below), whose sum is σ = 1402398031680. Its totient is φ = 688897278384.

The previous prime is 1004641864519. The next prime is 1004641864649. The reversal of 1004641864555 is 5554681464001.

It is not a de Polignac number, because 1004641864555 - 2¹⁷ = 1004641733483 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 1004641864499 and 1004641864508.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2050289275 + ... + 2050289764.

It is an arithmetic number, because the mean of its divisors is an integer number (116866502640).

Almost surely, 2^{1004641864555} is an apocalyptic number.

1004641864555 is a deficient number, since it is larger than the sum of its proper divisors (397756167125).

1004641864555 is an equidigital number, since it uses as much as digits as its factorization.

1004641864555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4100579058 (or 4100579051 counting only the distinct ones).

The product of its (nonzero) digits is 2304000, while the sum is 49.

The spelling of 1004641864555 in words is "one trillion, four billion, six hundred forty-one million, eight hundred sixty-four thousand, five hundred fifty-five".