40257535013 has 2 divisors, whose sum is σ = 40257535014. Its totient is φ = 40257535012.

The previous prime is 40257535001. The next prime is 40257535039. The reversal of 40257535013 is 31053575204.

40257535013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20306820004 + 19950715009 = 142502^2 + 141247^2 .

It is a cyclic number.

It is not a de Polignac number, because 40257535013 - 2²⁶ = 40190426149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40253535013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20128767506 + 20128767507.

It is an arithmetic number, because the mean of its divisors is an integer number (20128767507).

Almost surely, 2^40257535013 is an apocalyptic number.

It is an amenable number.

40257535013 is a deficient number, since it is larger than the sum of its proper divisors (1).

40257535013 is an equidigital number, since it uses as much as digits as its factorization.

40257535013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 35.

The spelling of 40257535013 in words is "forty billion, two hundred fifty-seven million, five hundred thirty-five thousand, thirteen".