40757657673 has 4 divisors (see below), whose sum is σ = 54343543568. Its totient is φ = 27171771780.

The previous prime is 40757657669. The next prime is 40757657693. The reversal of 40757657673 is 37675675704.

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 40757657673 - 2² = 40757657669 is a prime.

It is a super-2 number, since 2×40757657673² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40757657653) 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, 6792942943 + ... + 6792942948.

It is an arithmetic number, because the mean of its divisors is an integer number (13585885892).

Almost surely, 2^40757657673 is an apocalyptic number.

It is an amenable number.

40757657673 is a deficient number, since it is larger than the sum of its proper divisors (13585885895).

40757657673 is a wasteful number, since it uses less digits than its factorization.

40757657673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13585885894.

The product of its (nonzero) digits is 25930800, while the sum is 57.

The spelling of 40757657673 in words is "forty billion, seven hundred fifty-seven million, six hundred fifty-seven thousand, six hundred seventy-three".