11879851934 has 4 divisors (see below), whose sum is σ = 17819777904. Its totient is φ = 5939925966.

The previous prime is 11879851933. The next prime is 11879851939. The reversal of 11879851934 is 43915897811.

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: 43915897811 = 61 ⋅719932751.

It is a super-2 number, since 2×11879851934² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11879851934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11879851933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2969962982 + ... + 2969962985.

It is an arithmetic number, because the mean of its divisors is an integer number (4454944476).

Almost surely, 2^11879851934 is an apocalyptic number.

11879851934 is a deficient number, since it is larger than the sum of its proper divisors (5939925970).

11879851934 is an equidigital number, since it uses as much as digits as its factorization.

11879851934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5939925969.

The product of its digits is 2177280, while the sum is 56.

The spelling of 11879851934 in words is "eleven billion, eight hundred seventy-nine million, eight hundred fifty-one thousand, nine hundred thirty-four".