40244661351 has 40 divisors (see below), whose sum is σ = 61555214864. Its totient is φ = 26189412480.

The previous prime is 40244661307. The next prime is 40244661383. The reversal of 40244661351 is 15316644204.

40244661351 is a `hidden beast` number, since 4 + 0 + 244 + 6 + 61 + 351 = 666.

It is not a de Polignac number, because 40244661351 - 2¹⁰ = 40244660327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40744661351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8276661 + ... + 8281521.

Almost surely, 2^40244661351 is an apocalyptic number.

40244661351 is a deficient number, since it is larger than the sum of its proper divisors (21310553513).

40244661351 is a wasteful number, since it uses less digits than its factorization.

40244661351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7293 (or 7284 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 40244661351 in words is "forty billion, two hundred forty-four million, six hundred sixty-one thousand, three hundred fifty-one".