11621783044 has 6 divisors (see below), whose sum is σ = 20338120334. Its totient is φ = 5810891520.

The previous prime is 11621783009. The next prime is 11621783051. The reversal of 11621783044 is 44038712611.

It can be written as a sum of positive squares in only one way, i.e., 8230118400 + 3391664644 = 90720^2 + 58238^2 .

It is a super-2 number, since 2×11621783044² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11621782994 and 11621783012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1452722877 + ... + 1452722884.

Almost surely, 2^11621783044 is an apocalyptic number.

It is an amenable number.

11621783044 is a deficient number, since it is larger than the sum of its proper divisors (8716337290).

11621783044 is a wasteful number, since it uses less digits than its factorization.

11621783044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905445765 (or 2905445763 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 11621783044 in words is "eleven billion, six hundred twenty-one million, seven hundred eighty-three thousand, forty-four".