40752391679 has 4 divisors (see below), whose sum is σ = 40752841680. Its totient is φ = 40751941680.

The previous prime is 40752391577. The next prime is 40752391733. The reversal of 40752391679 is 97619325704.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 40752391679 - 2⁸ = 40752391423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40752391679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40752331679) 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, 36542 + ... + 287819.

It is an arithmetic number, because the mean of its divisors is an integer number (10188210420).

Almost surely, 2^40752391679 is an apocalyptic number.

40752391679 is a deficient number, since it is larger than the sum of its proper divisors (450001).

40752391679 is a wasteful number, since it uses less digits than its factorization.

40752391679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450000.

The product of its (nonzero) digits is 2857680, while the sum is 53.

The spelling of 40752391679 in words is "forty billion, seven hundred fifty-two million, three hundred ninety-one thousand, six hundred seventy-nine".