40540147864 has 64 divisors (see below), whose sum is σ = 78669576000. Its totient is φ = 19570636800.

The previous prime is 40540147859. The next prime is 40540147871. The reversal of 40540147864 is 46874104504.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40540147864.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30688324 + ... + 30689644.

It is an arithmetic number, because the mean of its divisors is an integer number (1229212125).

Almost surely, 2^40540147864 is an apocalyptic number.

It is an amenable number.

40540147864 is a deficient number, since it is larger than the sum of its proper divisors (38129428136).

40540147864 is a wasteful number, since it uses less digits than its factorization.

40540147864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084 (or 2080 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 43.

The spelling of 40540147864 in words is "forty billion, five hundred forty million, one hundred forty-seven thousand, eight hundred sixty-four".