20230723778 has 16 divisors (see below), whose sum is σ = 31746911040. Its totient is φ = 9650682096.

The previous prime is 20230723771. The next prime is 20230723781. The reversal of 20230723778 is 87732703202.

It is a super-3 number, since 3×20230723778³ (a number of 32 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20230723771) 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, 547400 + ... + 583187.

It is an arithmetic number, because the mean of its divisors is an integer number (1984181940).

Almost surely, 2^20230723778 is an apocalyptic number.

20230723778 is a deficient number, since it is larger than the sum of its proper divisors (11516187262).

20230723778 is a wasteful number, since it uses less digits than its factorization.

20230723778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131001.

The product of its (nonzero) digits is 197568, while the sum is 41.

The spelling of 20230723778 in words is "twenty billion, two hundred thirty million, seven hundred twenty-three thousand, seven hundred seventy-eight".