541994662818 has 48 divisors (see below), whose sum is σ = 1342536811200. Its totient is φ = 154803142368.

The previous prime is 541994662757. The next prime is 541994662919. The reversal of 541994662818 is 818266499145.

541994662818 is a `hidden beast` number, since 5 + 4 + 1 + 99 + 466 + 2 + 81 + 8 = 666.

It is a super-2 number, since 2×541994662818² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 354768 + ... + 1099931.

It is an arithmetic number, because the mean of its divisors is an integer number (27969516900).

Almost surely, 2^541994662818 is an apocalyptic number.

541994662818 is an abundant number, since it is smaller than the sum of its proper divisors (800542148382).

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

541994662818 is a wasteful number, since it uses less digits than its factorization.

541994662818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457671 (or 1457668 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 63.

The spelling of 541994662818 in words is "five hundred forty-one billion, nine hundred ninety-four million, six hundred sixty-two thousand, eight hundred eighteen".