1098526808537 has 4 divisors (see below), whose sum is σ = 1098546548736. Its totient is φ = 1098507068340.

The previous prime is 1098526808507. The next prime is 1098526808539. The reversal of 1098526808537 is 7358086258901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1098526808537 - 2¹⁰ = 1098526807513 is a prime.

It is a super-2 number, since 2×1098526808537² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1098526808537.

It is not an unprimeable number, because it can be changed into a prime (1098526808539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9786389 + ... + 9898002.

It is an arithmetic number, because the mean of its divisors is an integer number (274636637184).

Almost surely, 2^{1098526808537} is an apocalyptic number.

It is an amenable number.

1098526808537 is a deficient number, since it is larger than the sum of its proper divisors (19740199).

1098526808537 is an equidigital number, since it uses as much as digits as its factorization.

1098526808537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19740198.

The product of its (nonzero) digits is 29030400, while the sum is 62.

The spelling of 1098526808537 in words is "one trillion, ninety-eight billion, five hundred twenty-six million, eight hundred eight thousand, five hundred thirty-seven".