40426620464 has 10 divisors (see below), whose sum is σ = 78326577180. Its totient is φ = 20213310224.

The previous prime is 40426620457. The next prime is 40426620541. The reversal of 40426620464 is 46402662404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1263331874 + ... + 1263331905.

It is an arithmetic number, because the mean of its divisors is an integer number (7832657718).

Almost surely, 2^40426620464 is an apocalyptic number.

It is an amenable number.

40426620464 is a deficient number, since it is larger than the sum of its proper divisors (37899956716).

40426620464 is a wasteful number, since it uses less digits than its factorization.

40426620464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526663787 (or 2526663781 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

The spelling of 40426620464 in words is "forty billion, four hundred twenty-six million, six hundred twenty thousand, four hundred sixty-four".