26623723728 has 40 divisors (see below), whose sum is σ = 78603375808. Its totient is φ = 7606778112.

The previous prime is 26623723727. The next prime is 26623723739. The reversal of 26623723728 is 82732732662.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26623723727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39618301 + ... + 39618972.

Almost surely, 2^26623723728 is an apocalyptic number.

26623723728 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

26623723728 is an abundant number, since it is smaller than the sum of its proper divisors (51979652080).

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

26623723728 is a wasteful number, since it uses less digits than its factorization.

26623723728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79237291 (or 79237285 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 48.

The spelling of 26623723728 in words is "twenty-six billion, six hundred twenty-three million, seven hundred twenty-three thousand, seven hundred twenty-eight".