23686147770 has 128 divisors (see below), whose sum is σ = 60787584000. Its totient is φ = 5886120960.

The previous prime is 23686147763. The next prime is 23686147789. The reversal of 23686147770 is 7774168632.

It is a happy number.

It is a super-2 number, since 2×23686147770² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 41481585 + ... + 41482155.

It is an arithmetic number, because the mean of its divisors is an integer number (474903000).

Almost surely, 2^23686147770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23686147770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30393792000).

23686147770 is an abundant number, since it is smaller than the sum of its proper divisors (37101436230).

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

23686147770 is a wasteful number, since it uses less digits than its factorization.

23686147770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260.

The product of its (nonzero) digits is 2370816, while the sum is 51.

The spelling of 23686147770 in words is "twenty-three billion, six hundred eighty-six million, one hundred forty-seven thousand, seven hundred seventy".