23142619378 has 4 divisors (see below), whose sum is σ = 34713929070. Its totient is φ = 11571309688.

The previous prime is 23142619361. The next prime is 23142619387. The reversal of 23142619378 is 87391624132.

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

It can be written as a sum of positive squares in only one way, i.e., 23095792729 + 46826649 = 151973^2 + 6843^2 .

It is a super-2 number, since 2×23142619378² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5785654843 + ... + 5785654846.

Almost surely, 2^23142619378 is an apocalyptic number.

23142619378 is a deficient number, since it is larger than the sum of its proper divisors (11571309692).

23142619378 is a wasteful number, since it uses less digits than its factorization.

23142619378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11571309691.

The product of its digits is 435456, while the sum is 46.

The spelling of 23142619378 in words is "twenty-three billion, one hundred forty-two million, six hundred nineteen thousand, three hundred seventy-eight".