1018698421741 has 216 divisors, whose sum is σ = 1536601683960. Its totient is φ = 666557337600.

The previous prime is 1018698421739. The next prime is 1018698421751. The reversal of 1018698421741 is 1471248968101.

It can be written as a sum of positive squares in 4 ways, for example, as 288449555625 + 730248866116 = 537075^2 + 854546^2 .

It is not a de Polignac number, because 1018698421741 - 2¹ = 1018698421739 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1018698421751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 1259206545 + ... + 1259207353.

It is an arithmetic number, because the mean of its divisors is an integer number (7113896685).

Almost surely, 2^{1018698421741} is an apocalyptic number.

1018698421741 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1018698421741 is a deficient number, since it is larger than the sum of its proper divisors (517903262219).

1018698421741 is a wasteful number, since it uses less digits than its factorization.

1018698421741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 937 (or 888 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 52.

The spelling of 1018698421741 in words is "one trillion, eighteen billion, six hundred ninety-eight million, four hundred twenty-one thousand, seven hundred forty-one".