23278393830 has 64 divisors (see below), whose sum is σ = 57693616128. Its totient is φ = 6004903680.

The previous prime is 23278393829. The next prime is 23278393841. The reversal of 23278393830 is 3839387232.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23278393830.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4054722 + ... + 4060458.

It is an arithmetic number, because the mean of its divisors is an integer number (901462752).

Almost surely, 2^23278393830 is an apocalyptic number.

23278393830 is an abundant number, since it is smaller than the sum of its proper divisors (34415222298).

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

23278393830 is a wasteful number, since it uses less digits than its factorization.

23278393830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10141.

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 23278393830 in words is "twenty-three billion, two hundred seventy-eight million, three hundred ninety-three thousand, eight hundred thirty".