23278370690 has 8 divisors (see below), whose sum is σ = 41901067260. Its totient is φ = 9311348272.

The previous prime is 23278370683. The next prime is 23278370693. The reversal of 23278370690 is 9607387232.

It can be written as a sum of positive squares in 2 ways, for example, as 23131063921 + 147306769 = 152089^2 + 12137^2 .

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

It is a super-2 number, since 2×23278370690² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23278370693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1163918525 + ... + 1163918544.

Almost surely, 2^23278370690 is an apocalyptic number.

23278370690 is a deficient number, since it is larger than the sum of its proper divisors (18622696570).

23278370690 is a wasteful number, since it uses less digits than its factorization.

23278370690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2327837076.

The product of its (nonzero) digits is 762048, while the sum is 47.

The spelling of 23278370690 in words is "twenty-three billion, two hundred seventy-eight million, three hundred seventy thousand, six hundred ninety".