1398857349288 has 64 divisors (see below), whose sum is σ = 3996823144320. Its totient is φ = 399664742400.

The previous prime is 1398857349229. The next prime is 1398857349299. The reversal of 1398857349288 is 8829437588931.

It is a Cunningham number, because it is equal to 1182733²-1.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14143528 + ... + 14242088.

It is an arithmetic number, because the mean of its divisors is an integer number (62450361630).

Almost surely, 2^{1398857349288} is an apocalyptic number.

It is an amenable number.

1398857349288 is an abundant number, since it is smaller than the sum of its proper divisors (2597965795032).

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

1398857349288 is a wasteful number, since it uses less digits than its factorization.

1398857349288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183058 (or 183054 counting only the distinct ones).

The product of its digits is 836075520, while the sum is 75.

The spelling of 1398857349288 in words is "one trillion, three hundred ninety-eight billion, eight hundred fifty-seven million, three hundred forty-nine thousand, two hundred eighty-eight".