40121745257373 has 16 divisors (see below), whose sum is σ = 57711960223680. Its totient is φ = 24646912308864.

The previous prime is 40121745257311. The next prime is 40121745257401. The reversal of 40121745257373 is 37375254712104.

It is not a de Polignac number, because 40121745257373 - 2¹⁴ = 40121745240989 is a prime.

It is a super-2 number, since 2×40121745257373² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40121745257303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 903987211 + ... + 904031592.

It is an arithmetic number, because the mean of its divisors is an integer number (3606997513980).

Almost surely, 2^{40121745257373} is an apocalyptic number.

It is an amenable number.

40121745257373 is a deficient number, since it is larger than the sum of its proper divisors (17590214966307).

40121745257373 is a wasteful number, since it uses less digits than its factorization.

40121745257373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808019388.

The product of its (nonzero) digits is 4939200, while the sum is 51.

Adding to 40121745257373 its reverse (37375254712104), we get a palindrome (77496999969477).

The spelling of 40121745257373 in words is "forty trillion, one hundred twenty-one billion, seven hundred forty-five million, two hundred fifty-seven thousand, three hundred seventy-three".