23091052778 has 8 divisors (see below), whose sum is σ = 34637581668. Its totient is φ = 11545192224.

The previous prime is 23091052727. The next prime is 23091052781. The reversal of 23091052778 is 87725019032.

It can be written as a sum of positive squares in 2 ways, for example, as 21552295249 + 1538757529 = 146807^2 + 39227^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69251 + ... + 225782.

Almost surely, 2^23091052778 is an apocalyptic number.

23091052778 is a deficient number, since it is larger than the sum of its proper divisors (11546528890).

23091052778 is a wasteful number, since it uses less digits than its factorization.

23091052778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334168.

The product of its (nonzero) digits is 211680, while the sum is 44.

The spelling of 23091052778 in words is "twenty-three billion, ninety-one million, fifty-two thousand, seven hundred seventy-eight".