40244664251 has 12 divisors (see below), whose sum is σ = 44242821336. Its totient is φ = 36580309920.

The previous prime is 40244664233. The next prime is 40244664269. The reversal of 40244664251 is 15246644204.

It is an interprime number because it is at equal distance from previous prime (40244664233) and next prime (40244664269).

It is not a de Polignac number, because 40244664251 - 2¹⁴ = 40244647867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40244634251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 875036 + ... + 919878.

It is an arithmetic number, because the mean of its divisors is an integer number (3686901778).

Almost surely, 2^40244664251 is an apocalyptic number.

40244664251 is a deficient number, since it is larger than the sum of its proper divisors (3998157085).

40244664251 is a wasteful number, since it uses less digits than its factorization.

40244664251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52282 (or 52271 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 38.

The spelling of 40244664251 in words is "forty billion, two hundred forty-four million, six hundred sixty-four thousand, two hundred fifty-one".