23679257780 has 48 divisors (see below), whose sum is σ = 51124757376. Its totient is φ = 9205902720.

The previous prime is 23679257779. The next prime is 23679257801. The reversal of 23679257780 is 8775297632.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 699035 + ... + 732125.

It is an arithmetic number, because the mean of its divisors is an integer number (1065099112).

Almost surely, 2^23679257780 is an apocalyptic number.

23679257780 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 23679257780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25562378688).

23679257780 is an abundant number, since it is smaller than the sum of its proper divisors (27445499596).

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

23679257780 is a wasteful number, since it uses less digits than its factorization.

23679257780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34104 (or 34102 counting only the distinct ones).

The product of its (nonzero) digits is 8890560, while the sum is 56.

The spelling of 23679257780 in words is "twenty-three billion, six hundred seventy-nine million, two hundred fifty-seven thousand, seven hundred eighty".