1097279813436 has 12 divisors (see below), whose sum is σ = 2560319564712. Its totient is φ = 365759937808.

The previous prime is 1097279813407. The next prime is 1097279813459. The reversal of 1097279813436 is 6343189727901.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1097279813436² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1097279813436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45719992215 + ... + 45719992238.

It is an arithmetic number, because the mean of its divisors is an integer number (213359963726).

Almost surely, 2^{1097279813436} is an apocalyptic number.

It is an amenable number.

1097279813436 is an abundant number, since it is smaller than the sum of its proper divisors (1463039751276).

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

1097279813436 is a wasteful number, since it uses less digits than its factorization.

1097279813436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91439984460 (or 91439984458 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 60.

The spelling of 1097279813436 in words is "one trillion, ninety-seven billion, two hundred seventy-nine million, eight hundred thirteen thousand, four hundred thirty-six".