40257471166523 has 8 divisors (see below), whose sum is σ = 43354455215568. Its totient is φ = 37160523617184.

The previous prime is 40257471166487. The next prime is 40257471166547. The reversal of 40257471166523 is 32566117475204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40257471166523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40257471166223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6812465 + ... + 11266082.

It is an arithmetic number, because the mean of its divisors is an integer number (5419306901946).

Almost surely, 2^{40257471166523} is an apocalyptic number.

40257471166523 is a deficient number, since it is larger than the sum of its proper divisors (3096984049045).

40257471166523 is a wasteful number, since it uses less digits than its factorization.

40257471166523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18249853.

The product of its (nonzero) digits is 8467200, while the sum is 53.

The spelling of 40257471166523 in words is "forty trillion, two hundred fifty-seven billion, four hundred seventy-one million, one hundred sixty-six thousand, five hundred twenty-three".