40790392593 has 4 divisors (see below), whose sum is σ = 54387190128. Its totient is φ = 27193595060.

The previous prime is 40790392549. The next prime is 40790392663. The reversal of 40790392593 is 39529309704.

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 a cyclic number.

It is not a de Polignac number, because 40790392593 - 2¹² = 40790388497 is a prime.

It is a super-2 number, since 2×40790392593² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40790392523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6798398763 + ... + 6798398768.

It is an arithmetic number, because the mean of its divisors is an integer number (13596797532).

Almost surely, 2^40790392593 is an apocalyptic number.

It is an amenable number.

40790392593 is a deficient number, since it is larger than the sum of its proper divisors (13596797535).

40790392593 is a wasteful number, since it uses less digits than its factorization.

40790392593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13596797534.

The product of its (nonzero) digits is 1837080, while the sum is 51.

The spelling of 40790392593 in words is "forty billion, seven hundred ninety million, three hundred ninety-two thousand, five hundred ninety-three".