23964278416 has 75 divisors (see below), whose sum is σ = 50520495741. Its totient is φ = 11012137344.

The previous prime is 23964278341. The next prime is 23964278483. The reversal of 23964278416 is 61487246932.

The square root of 23964278416 is 154804.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 7 ways, for example, as 17954928016 + 6009350400 = 133996^2 + 77520^2 .

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 104647390 + ... + 104647618.

Almost surely, 2^23964278416 is an apocalyptic number.

23964278416 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

23964278416 is the 154804-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23964278416

23964278416 is an abundant number, since it is smaller than the sum of its proper divisors (26556217325).

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

23964278416 is an frugal number, since it uses more digits than its factorization.

23964278416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 244 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 52.

The spelling of 23964278416 in words is "twenty-three billion, nine hundred sixty-four million, two hundred seventy-eight thousand, four hundred sixteen".