1268100538 has 8 divisors (see below), whose sum is σ = 1984853088. Its totient is φ = 606482844.

The previous prime is 1268100503. The next prime is 1268100583. The reversal of 1268100538 is 8350018621.

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, 13783656 + ... + 13783747.

It is an arithmetic number, because the mean of its divisors is an integer number (248106636).

Almost surely, 2^1268100538 is an apocalyptic number.

1268100538 is a deficient number, since it is larger than the sum of its proper divisors (716752550).

1268100538 is a wasteful number, since it uses less digits than its factorization.

1268100538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27567428.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 1268100538 is about 35610.3992957114. The cubic root of 1268100538 is about 1082.3919714692.

The spelling of 1268100538 in words is "one billion, two hundred sixty-eight million, one hundred thousand, five hundred thirty-eight".