44694655657 has 2 divisors, whose sum is σ = 44694655658. Its totient is φ = 44694655656.

The previous prime is 44694655639. The next prime is 44694655669. The reversal of 44694655657 is 75655649644.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32321207961 + 12373447696 = 179781^2 + 111236^2 .

It is a cyclic number.

It is not a de Polignac number, because 44694655657 - 2²³ = 44686267049 is a prime.

It is a super-2 number, since 2×44694655657² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 44694655595 and 44694655604.

It is not a weakly prime, because it can be changed into another prime (44694655157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22347327828 + 22347327829.

It is an arithmetic number, because the mean of its divisors is an integer number (22347327829).

Almost surely, 2^44694655657 is an apocalyptic number.

It is an amenable number.

44694655657 is a deficient number, since it is larger than the sum of its proper divisors (1).

44694655657 is an equidigital number, since it uses as much as digits as its factorization.

44694655657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864000, while the sum is 61.

The spelling of 44694655657 in words is "forty-four billion, six hundred ninety-four million, six hundred fifty-five thousand, six hundred fifty-seven".