40749164903686 has 4 divisors (see below), whose sum is σ = 61123747355532. Its totient is φ = 20374582451842.

The previous prime is 40749164903663. The next prime is 40749164903731. The reversal of 40749164903686 is 68630946194704.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10187291225920 + ... + 10187291225923.

It is an arithmetic number, because the mean of its divisors is an integer number (15280936838883).

Almost surely, 2^{40749164903686} is an apocalyptic number.

40749164903686 is a deficient number, since it is larger than the sum of its proper divisors (20374582451846).

40749164903686 is a wasteful number, since it uses less digits than its factorization.

40749164903686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20374582451845.

The product of its (nonzero) digits is 188116992, while the sum is 67.

The spelling of 40749164903686 in words is "forty trillion, seven hundred forty-nine billion, one hundred sixty-four million, nine hundred three thousand, six hundred eighty-six".