1398822656892 has 24 divisors (see below), whose sum is σ = 3308630761296. Its totient is φ = 459886900608.

The previous prime is 1398822656863. The next prime is 1398822656893. The reversal of 1398822656892 is 2986562288931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1398822656893) 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, 798413883 + ... + 798415634.

It is an arithmetic number, because the mean of its divisors is an integer number (137859615054).

Almost surely, 2^{1398822656892} is an apocalyptic number.

1398822656892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1398822656892 is an abundant number, since it is smaller than the sum of its proper divisors (1909808104404).

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

1398822656892 is a wasteful number, since it uses less digits than its factorization.

1398822656892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1596829597 (or 1596829595 counting only the distinct ones).

The product of its digits is 179159040, while the sum is 69.

The spelling of 1398822656892 in words is "one trillion, three hundred ninety-eight billion, eight hundred twenty-two million, six hundred fifty-six thousand, eight hundred ninety-two".