11700671438 has 4 divisors (see below), whose sum is σ = 17551007160. Its totient is φ = 5850335718.

The previous prime is 11700671399. The next prime is 11700671443. The reversal of 11700671438 is 83417600711.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83417600711 = 61 ⋅1367501651.

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, 2925167858 + ... + 2925167861.

It is an arithmetic number, because the mean of its divisors is an integer number (4387751790).

Almost surely, 2^11700671438 is an apocalyptic number.

11700671438 is a deficient number, since it is larger than the sum of its proper divisors (5850335722).

11700671438 is an equidigital number, since it uses as much as digits as its factorization.

11700671438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5850335721.

The product of its (nonzero) digits is 28224, while the sum is 38.

The spelling of 11700671438 in words is "eleven billion, seven hundred million, six hundred seventy-one thousand, four hundred thirty-eight".