2626645240456 has 8 divisors (see below), whose sum is σ = 4924959825870. Its totient is φ = 1313322620224.

The previous prime is 2626645240451. The next prime is 2626645240459. The reversal of 2626645240456 is 6540425466262.

It can be written as a sum of positive squares in only one way, i.e., 2359941164100 + 266704076356 = 1536210^2 + 516434^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (2626645240451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164165327521 + ... + 164165327536.

Almost surely, 2^{2626645240456} is an apocalyptic number.

It is an amenable number.

2626645240456 is a deficient number, since it is larger than the sum of its proper divisors (2298314585414).

2626645240456 is a wasteful number, since it uses less digits than its factorization.

2626645240456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328330655063 (or 328330655059 counting only the distinct ones).

The product of its (nonzero) digits is 16588800, while the sum is 52.

The spelling of 2626645240456 in words is "two trillion, six hundred twenty-six billion, six hundred forty-five million, two hundred forty thousand, four hundred fifty-six".