23387278982 has 4 divisors (see below), whose sum is σ = 35080918476. Its totient is φ = 11693639490.

The previous prime is 23387278979. The next prime is 23387278997. The reversal of 23387278982 is 28987278332.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5846819744 + ... + 5846819747.

It is an arithmetic number, because the mean of its divisors is an integer number (8770229619).

Almost surely, 2^23387278982 is an apocalyptic number.

23387278982 is a deficient number, since it is larger than the sum of its proper divisors (11693639494).

23387278982 is a wasteful number, since it uses less digits than its factorization.

23387278982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11693639493.

The product of its digits is 16257024, while the sum is 59.

Adding to 23387278982 its sum of digits (59), we get a square (23387279041 = 152929²).

The spelling of 23387278982 in words is "twenty-three billion, three hundred eighty-seven million, two hundred seventy-eight thousand, nine hundred eighty-two".