23685671700 has 648 divisors, whose sum is σ = 85310199520. Its totient is φ = 5682700800.

The previous prime is 23685671687. The next prime is 23685671747. The reversal of 23685671700 is 717658632.

23685671700 is a `hidden beast` number, since 23 + 68 + 567 + 1 + 7 + 0 + 0 = 666.

It is a super-2 number, since 2×23685671700² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

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, 388289670 + ... + 388289730.

Almost surely, 2^23685671700 is an apocalyptic number.

23685671700 is a gapful number since it is divisible by the number (20) 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 23685671700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42655099760).

23685671700 is an abundant number, since it is smaller than the sum of its proper divisors (61624527820).

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

23685671700 is a wasteful number, since it uses less digits than its factorization.

23685671700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 23685671700 in words is "twenty-three billion, six hundred eighty-five million, six hundred seventy-one thousand, seven hundred".