694972420800 has 672 divisors, whose sum is σ = 2683428963840. Its totient is φ = 154143129600.

The previous prime is 694972420781. The next prime is 694972420817. The reversal of 694972420800 is 8024279496.

It is a tau number, because it is divible by the number of its divisors (672).

It is a super-2 number, since 2×694972420800² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 859050796 + ... + 859051604.

Almost surely, 2^694972420800 is an apocalyptic number.

694972420800 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 694972420800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1341714481920).

694972420800 is an abundant number, since it is smaller than the sum of its proper divisors (1988456543040).

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

694972420800 is a wasteful number, since it uses less digits than its factorization.

694972420800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1569 (or 1554 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 694972420800 in words is "six hundred ninety-four billion, nine hundred seventy-two million, four hundred twenty thousand, eight hundred".