1098687618736 has 40 divisors (see below), whose sum is σ = 2241065850800. Its totient is φ = 520356337920.

The previous prime is 1098687618733. The next prime is 1098687618737. The reversal of 1098687618736 is 6378167868901.

It is a happy number.

It is a super-2 number, since 2×1098687618736² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1098687618733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1893346 + ... + 2404606.

It is an arithmetic number, because the mean of its divisors is an integer number (56026646270).

Almost surely, 2^{1098687618736} is an apocalyptic number.

1098687618736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1098687618736 is an abundant number, since it is smaller than the sum of its proper divisors (1142378232064).

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

1098687618736 is a wasteful number, since it uses less digits than its factorization.

1098687618736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518357 (or 518351 counting only the distinct ones).

The product of its (nonzero) digits is 146313216, while the sum is 70.

The spelling of 1098687618736 in words is "one trillion, ninety-eight billion, six hundred eighty-seven million, six hundred eighteen thousand, seven hundred thirty-six".