11878948949879 has 32 divisors (see below), whose sum is σ = 13420732520448. Its totient is φ = 10416462768000.

The previous prime is 11878948949807. The next prime is 11878948949897. The reversal of 11878948949879 is 97894984987811.

It is not a de Polignac number, because 11878948949879 - 2³⁶ = 11810229473143 is a prime.

It is a super-2 number, since 2×11878948949879² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11878948949579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 220398524 + ... + 220452414.

It is an arithmetic number, because the mean of its divisors is an integer number (419397891264).

Almost surely, 2^{11878948949879} is an apocalyptic number.

11878948949879 is a deficient number, since it is larger than the sum of its proper divisors (1541783570569).

11878948949879 is a wasteful number, since it uses less digits than its factorization.

11878948949879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56039.

The product of its digits is 21069103104, while the sum is 92.

The spelling of 11878948949879 in words is "eleven trillion, eight hundred seventy-eight billion, nine hundred forty-eight million, nine hundred forty-nine thousand, eight hundred seventy-nine".