23478749100 has 360 divisors, whose sum is σ = 78575647920. Its totient is φ = 6061547520.

The previous prime is 23478749089. The next prime is 23478749101. The reversal of 23478749100 is 194787432.

23478749100 is a `hidden beast` number, since 2 + 3 + 478 + 74 + 9 + 100 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (23478749101) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 34886364 + ... + 34887036.

Almost surely, 2^23478749100 is an apocalyptic number.

23478749100 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 23478749100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39287823960).

23478749100 is an abundant number, since it is smaller than the sum of its proper divisors (55096898820).

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

23478749100 is a wasteful number, since it uses less digits than its factorization.

23478749100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831 (or 815 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 23478749100 in words is "twenty-three billion, four hundred seventy-eight million, seven hundred forty-nine thousand, one hundred".