40075364646 has 24 divisors (see below), whose sum is σ = 86949421104. Its totient is φ = 13340075760.

The previous prime is 40075364639. The next prime is 40075364653. The reversal of 40075364646 is 64646357004.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (40075364639) and next prime (40075364653).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1518145 + ... + 1544316.

It is an arithmetic number, because the mean of its divisors is an integer number (3622892546).

Almost surely, 2^40075364646 is an apocalyptic number.

40075364646 is an abundant number, since it is smaller than the sum of its proper divisors (46874056458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40075364646 is a wasteful number, since it uses less digits than its factorization.

40075364646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3063196 (or 3063193 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 45.

The spelling of 40075364646 in words is "forty billion, seventy-five million, three hundred sixty-four thousand, six hundred forty-six".