40757721460 has 12 divisors (see below), whose sum is σ = 85591215108. Its totient is φ = 16303088576.

The previous prime is 40757721437. The next prime is 40757721463. The reversal of 40757721460 is 6412775704.

It can be written as a sum of positive squares in 2 ways, for example, as 21235484176 + 19522237284 = 145724^2 + 139722^2 .

It is a super-2 number, since 2×40757721460² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40757721463) 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, 1018943017 + ... + 1018943056.

It is an arithmetic number, because the mean of its divisors is an integer number (7132601259).

Almost surely, 2^40757721460 is an apocalyptic number.

It is an amenable number.

40757721460 is an abundant number, since it is smaller than the sum of its proper divisors (44833493648).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40757721460 is a wasteful number, since it uses less digits than its factorization.

40757721460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2037886082 (or 2037886080 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 43.

The spelling of 40757721460 in words is "forty billion, seven hundred fifty-seven million, seven hundred twenty-one thousand, four hundred sixty".