11621777446 has 4 divisors (see below), whose sum is σ = 17432666172. Its totient is φ = 5810888722.

The previous prime is 11621777437. The next prime is 11621777459. The reversal of 11621777446 is 64477712611.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×11621777446² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11621777396 and 11621777405.

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, 2905444360 + ... + 2905444363.

It is an arithmetic number, because the mean of its divisors is an integer number (4358166543).

Almost surely, 2^11621777446 is an apocalyptic number.

11621777446 is a deficient number, since it is larger than the sum of its proper divisors (5810888726).

11621777446 is an equidigital number, since it uses as much as digits as its factorization.

11621777446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5810888725.

The product of its digits is 395136, while the sum is 46.

The spelling of 11621777446 in words is "eleven billion, six hundred twenty-one million, seven hundred seventy-seven thousand, four hundred forty-six".