40768947013 has 4 divisors (see below), whose sum is σ = 42084074368. Its totient is φ = 39453819660.

The previous prime is 40768946971. The next prime is 40768947029. The reversal of 40768947013 is 31074986704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40768947013 - 2⁹ = 40768946501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40768947913) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657563631 + ... + 657563692.

It is an arithmetic number, because the mean of its divisors is an integer number (10521018592).

Almost surely, 2^40768947013 is an apocalyptic number.

It is an amenable number.

40768947013 is a deficient number, since it is larger than the sum of its proper divisors (1315127355).

40768947013 is a wasteful number, since it uses less digits than its factorization.

40768947013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315127354.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 40768947013 in words is "forty billion, seven hundred sixty-eight million, nine hundred forty-seven thousand, thirteen".