1051804804518 has 48 divisors (see below), whose sum is σ = 2598576585696. Its totient is φ = 304595055360.

The previous prime is 1051804804441. The next prime is 1051804804553. The reversal of 1051804804518 is 8154084081501.

1051804804518 is a `hidden beast` number, since 1 + 0 + 51 + 8 + 0 + 4 + 80 + 4 + 518 = 666.

It is a super-2 number, since 2×1051804804518² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132198738 + ... + 132206693.

It is an arithmetic number, because the mean of its divisors is an integer number (54137012202).

Almost surely, 2^{1051804804518} is an apocalyptic number.

1051804804518 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1051804804518 is an abundant number, since it is smaller than the sum of its proper divisors (1546771781178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1051804804518 is a wasteful number, since it uses less digits than its factorization.

1051804804518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264405469 (or 264405466 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 45.

The spelling of 1051804804518 in words is "one trillion, fifty-one billion, eight hundred four million, eight hundred four thousand, five hundred eighteen".