40426636948 has 12 divisors (see below), whose sum is σ = 70782055092. Its totient is φ = 20203192640.

The previous prime is 40426636907. The next prime is 40426636949. The reversal of 40426636948 is 84963662404.

It can be written as a sum of positive squares in 2 ways, for example, as 4337276164 + 36089360784 = 65858^2 + 189972^2 .

It is a junction number, because it is equal to n+sod(n) for n = 40426636895 and 40426636904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40426636949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2522473 + ... + 2538448.

It is an arithmetic number, because the mean of its divisors is an integer number (5898504591).

Almost surely, 2^40426636948 is an apocalyptic number.

It is an amenable number.

40426636948 is a deficient number, since it is larger than the sum of its proper divisors (30355418144).

40426636948 is a wasteful number, since it uses less digits than its factorization.

40426636948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5062922 (or 5062920 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 52.

The spelling of 40426636948 in words is "forty billion, four hundred twenty-six million, six hundred thirty-six thousand, nine hundred forty-eight".