698090400000 has 1944 divisors, whose sum is σ = 3142768224960. Its totient is φ = 151165440000.

The previous prime is 698090399987. The next prime is 698090400023. The reversal of 698090400000 is 4090896.

It is a tau number, because it is divible by the number of its divisors (1944).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 36741599991 + ... + 36741600009.

Almost surely, 2^698090400000 is an apocalyptic number.

698090400000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 698090400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1571384112480).

698090400000 is an abundant number, since it is smaller than the sum of its proper divisors (2444677824960).

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

698090400000 is an frugal number, since it uses more digits than its factorization.

698090400000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 36 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

Adding to 698090400000 its reverse (4090896), we get a palindrome (698094490896).

The spelling of 698090400000 in words is "six hundred ninety-eight billion, ninety million, four hundred thousand".