11776754021 has 8 divisors (see below), whose sum is σ = 12796473600. Its totient is φ = 10797023520.

The previous prime is 11776753979. The next prime is 11776754039. The reversal of 11776754021 is 12045767711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11776754021 is a prime.

It is a super-2 number, since 2×11776754021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11776754021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11776754051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9996656 + ... + 9997833.

It is an arithmetic number, because the mean of its divisors is an integer number (1599559200).

Almost surely, 2^11776754021 is an apocalyptic number.

It is an amenable number.

11776754021 is a deficient number, since it is larger than the sum of its proper divisors (1019719579).

11776754021 is a wasteful number, since it uses less digits than its factorization.

11776754021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19994539.

The product of its (nonzero) digits is 82320, while the sum is 41.

The spelling of 11776754021 in words is "eleven billion, seven hundred seventy-six million, seven hundred fifty-four thousand, twenty-one".