11777951838890 has 8 divisors (see below), whose sum is σ = 21200313310020. Its totient is φ = 4711180735552.

The previous prime is 11777951838881. The next prime is 11777951838929. The reversal of 11777951838890 is 9883815977711.

It can be written as a sum of positive squares in 2 ways, for example, as 11773387350169 + 4564488721 = 3431237^2 + 67561^2 .

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, 588897591935 + ... + 588897591954.

Almost surely, 2^{11777951838890} is an apocalyptic number.

11777951838890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11777951838890 is a deficient number, since it is larger than the sum of its proper divisors (9422361471130).

11777951838890 is a wasteful number, since it uses less digits than its factorization.

11777951838890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177795183896.

The product of its (nonzero) digits is 213373440, while the sum is 74.

The spelling of 11777951838890 in words is "eleven trillion, seven hundred seventy-seven billion, nine hundred fifty-one million, eight hundred thirty-eight thousand, eight hundred ninety".